Why did my school just shove everything into this week i feel im going to fail now

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.

Jack brought 12 pet monkeys. if each monkey cost $45.99, how much money did he spend in all?

Which expression equals 9^3 sqrt 10 a. 5 sqrt 10 + 4 sqrt 10 b. 5^3 sqrt 10 + 4 ^3 sqrt 10 c. 5 sqrt 10 + 4^3 sqrt 10 d. 5^3 sqrt 10 + 4 sqrt 10