Answer:
Rational numbers
Step-by-step explanation I put D on a test and I got it right
cement =255 sand = 510 stone=1275 easy questions
Step-by-step explanation:
area formula is
π
plug in values:
9π
which equals
28.2743339
or you can write 9π im not sure what your teacher prefers
circumference formula is
2πr
6π
or
18.8495559
6a + 15
2 ^12 /5
is the answer.