The volume of box a is 2/5 the volume of box b. What is the height of Box A if it has a base area of 32 square centimeters.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.