1) Cupid fired 180 arrows this year. His partner, Psyche, fired 75% more arrows than he did. How many arrows
did Psyche fire?

2) Café L’ Amour is a popular restaurant for Valentine’s Day dates. The number of dates at cafe L’ Amour decreased by 15% between last year and this year. Last year, there were 80 dates at cafe L’ Amour. How many dates were there this year?

3) Joshua and Olivia are going out to dinner at cafe L’ Amour, and Olivia wants to tip 20% on a meal that cost $66.80
a) What would the tip be?
b) what were their total bill be?

4) Today, everything at a jewelry store is on sale. The store offers a 20% discount
a) The original price of a ring, before the discount it $840. What is the price of the ring after the discount?
b) The discount price of a necklace is $460. What is the original price?

step-by-step explanation:

quartic functions has x = –1 and x = –2 as its only two real zeroes:

f(x) = a(x+2)(x+1)   a: real number

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497

answer:

a=9

step-by-step explanation: lmk if you need a explanation