B. 122.08
http://www.convertit.com/go/convertit/calculators/finance/sales_tax_calc.asp
Answer:
P = 2l + 2w
solve for w
re-write
2l + 2w = P
subtract 2l from both sides
2w = P - 2l
divide both sides by 2
w = (P - 2l) / 2
Answer is B
w = (P - 2l) / 2
-25x is the slope
-42 is the y-intercept
Answer:
w=20
Step-by-step explanation:
Solve for w by cross multiplying.
