Answer:
9r²(r - 8)
Step-by-step explanation:
Step 1: Write expression
9r³ - 72r²
Step 2: Factor out 9
9(r³ - 8r²)
Step 3: Factor out r²
9r²(r - 8)
Answer:
2x-y-13=0
Step-by-step explanation:
Answer: 
<u>Add 3x to both sides</u>
<u></u>
<u></u>
<u></u>
<u>Subtract 15 from both sides</u>
<u></u>
<u></u>
<u></u>
<u>Divide both sides by 5</u>
<u></u>
<u></u>
Step-by-step explanation:
let say he sold 5 bagels then he would sell 5 bagels
12-5=7 , b=7
replace in 12-5=7
b=12-s
It’s 7 in that’s the only answer that makes sense