17. the answer is b
18. i don't know
Answer:
568 square ft.
Step-by-step explanation:
11x24=264
19x16=304
264+304=568
A.
68469.44
Multiplication is commutative so can be multiplied anyway
(2.0× 109)(3.02×104)
2.0 can be written as ( 20÷ 10) and 3.02 can be written as (302÷ 100)
(2× 109){(3.02÷ 100)× 104]
(218)(7852÷ 25)
