(-3)^2+5(-3)-4
9-15-4
=-10
Answer:
18
Step-by-step explanation:
Just divide both sides by - 64
1. 8/$12=21/$x then cross multiply.
2. 1/$1.5, we're looking for cost so $1 is more reasonable
3. $31.5
12x 21/ 8 = 31.5
