Answer:
9
Step-by-step explanation:
7r+18=r²
r²-7r-18=0
factorizing
r²+2r-9r-18=0
r(r+2)-9(r+2=0
(r-9)(r+2)=0
r-9=0
r=9
check
(r²)=(9*9)=81
7r+18=7(9) + 8=81
Hope this helps. :D
(Please mark as brainliest thanks)
Answer:
y + 51 ≥ -240
Step-by-step explanation:
Answer:
$26.87
Step-by-step explanation:
if the shirt was 35% off, then you paid 65% of the cost
that value can be found by:
39 x .65 = 25.35 (this is the amount paid for the shirt)
sales tax of 6% on 25.35 is:
.06 x 25.35 which equals 1.52
25.35 + 1.52 = 26.87
