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

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

if you was gonna solve for a, a is a   < -12

care to share were the trapezoid shown is ?