All outdoor amptitheater has 35 seats in the first row, 37 in the second rwo, and 39 in the thrid row and so om. there are 7 rows in total. how many van the amphiteather seat

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25