Answer:
4t^2 + t - 1.
Step-by-step explanation:
(3t^2 + 2t −2 )+(t^2 + 3t − 4) − (4t − 5)
= 3t^2 + 2t −2 + t^2 + 3t − 4 - 4t + 5
= 4t^2 + t - 1.
Answer:A
Step-by-step explanation:
X=2(y+1)^2-6
To find a percentage of a number, multiply by the decimal form of that percentage(20%=0.20). So, take the cost, $430, and multiply by common state sales tax (7% for me)---430 x 0.07 = 30.10 The sale tax rate is 7%.