Answer:
168 minutes, or 2 hours, 48 minutes
Step-by-step explanation:
Set up a proportion and solve.
56 minutes is to 4 tires as 'x' minutes are to 12 tires
becomes
56/4 = x/12 solve for x...
[56(12)]/4 = x (multiply both sides by 12 to get rid of the fraction)
672/4 = x (simplify 52(12) = 672)
168 = x (simplify 672/4 = 168)
-320 i guess
51*-2*3-21+7=-320
$45
3/4×60= 45
cost of jacket in sale: $45
hope it helps!
