Answer:
210 hours
Step-by-step explanation:
<u>Step 1: Make an expression</u>
(2/3 * 1575) / 5
<u>Step 2: Multiply</u>
(2/3 * 1575)/5
(1050) / 5
<u>Step 3: Divide</u>
(1050) / 5
210 hours
Answer: 210 hours
The main property is as follow
(A^p)^q=A^pxq
so only Sam's work is correct because
(8^4)^5 x(7^3)^9=(8^4x5)x(7^3x9)=8^20x 7^27
Step-by-step explanation:





so the answer is 40
Answer:
14 1/2
Step-by-step explanation:
Rewriting our equation with parts separated
=7 + 7/8 + 6 + 5/8
Solving the whole number parts
7 + 6=13
Solving the fraction parts
7/8 + 5/8= 12/8
Reducing the fraction part, 12/8,
12/8=3/2
Simplifying the fraction part, 3/2,
3/2=1 1/2
Combining the whole and fraction parts
13 + 1 + 12=14 1/2