Answer:x=-8
Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8
$4.24 should be the price after sales tax.
Hope this helped! (:
Answer:
y = 12
Step-by-step explanation:
y = 3x2+6
= 6+6
= 12
y = 12
Answer: d. He multiplied when he was supposed to divide
Step-by-step explanation:
He just multiplied across when he was supposed to divide (or cross multiply) to find the unit rate :)
