I need help on these questions can u make sure u do all of them cuz some people just only do one problem.

4. 28 2/4 ounces

5. 3.75

Step-by-step explanation:

4.

6 × 4 = 24

6 × 3/4 = 18/4 = 4 2/4

24 + 4.5 = 28.5 or 28 2/4 or 28 1/2

5.

5 × 3 = 15

5 × 0.25 = 1.25

15 + 1.25 = 16.25

20 - 16.25 = 3.75

I only know 5 but it is $3.75 left in his account!

Step-by-step explanation:

20-3.25= 16.75-3.25 =13.5-3.25= 10.25-3.25= 7-3.25=3.75

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm