Help me please

see below

Step-by-step explanation:

1.  Take the number of slices and multiply by the fraction that was eaten

16 * 1/4 = 16/4 = 4 slices

2.  Add the fractions together to determine the fraction that was eaten

1/3 + 3/8

Get a common denominator of 24

1/3 *8/8 + 3/8 *3/3

8/24 + 9/24 = 17/24

3.  Take the amount of gravel and divide by the number of square yards to determine how much in each square yard

1/2 ÷ 8

Copy dot flip

1/2 * 1/8

1/16 ton

4.  Take the amount of time Candice spent and subtract the amount of time Shane spent

3 4/5 - 2 1/10

Get a common denominator of 10

3 4/5 *2/2  - 2 1/10

3 8/10 - 2 1/10

1 7/10