D=40 m, t=10 s what is the rate of travel a. r=2 m/s b. r= 4 m/s c. r=40 m/s d. r=400 m/s

Nikolas calculated the volume of the prism. his work is shown below.

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%

Write the equation in general quadratic form: plz !