When the product of 15 and 40 is divided by the sum of 15 amd 45 what is the quotient

What is the value of x in the following equation. -x ^3/2 = -27

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%