Pemdas stands for parentheses, exponents,multiplication,division,addition, and subtraction. that is the order you need to expand this
first one: 9 x 10^8th i thinkor just 90 million
second one: 7 billion. 7 x 10^9
Answer:
denise,
Step-by-step explanation:
that is the only one i think
Answer:
$22,968
Step-by-step explanation:
To solve this question, we need to find the volume of the cylinder. Let’s call this V
Mathematically V = πr2h
where r = 3m , h = 7m and π = 22/7
Putting this in the formula:
V = 22/7 * 3 * 3 * 7 = 198 cubic meter
We are told concrete costs $116 per cubic meter. Hence, for 198 cubic meter we have 198 * 116 = $22,968