15. A bowl contains 21 pieces of candy: 3 cherry, 10
lemon, and 8 apple. How many additional cherry
pieces must be added to the bowl so that the
probability of randomly selecting a cherry piece
is 2/5

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

i don't know

step-by-step explanation:

both triangles are similar because 2 is just smaller than the big one 1 is similar because they are facing different way's but are similar to each other

step-by-step explanation:

is there any other information given for this problem? this is not enough information.