Compare the ratios 3:8 and 1:2 1. write ratios as fractions. 3:8 and 1:2 2. find a common denominator. 2 is a faction of 8, so the common denominator is 8. which comparison correctly compares the ratio 3:8 and 1:2? A) 3:8 > 1:2 B) 3:8 = 1:2 C)3:8 < 1:2 Im only in 6th grade and im doing this

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?