Wai and kuri were digging in the sand at the beach. was dug a hole that was 15 inches below the surface and kuri dug a hole that was 9 inches below the surface. find the difference in the depths of their holes.

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105