PLEASE HELP ME WITH THESE TWO PROBLEMS. QUICK POINTS RIGHT ANSWERS ONLYYY

How many cubic centimeter blocks are in the bottom layer of the prism shown below?

A rectangular prism with length of 3 centimeters, height of 5 centimeters, and width of 4 centimeters.
3
4
7
12

How many blocks with dimensions of One-fourth times 1 times 1 are needed to fill the gap in the prism?

A prism has a length of 3 and three-fourths, height of 3, and width of 2. 18 blocks are inside of the prism.
6
12
18
24

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.