Question details
a sofa costing $310.00 is sold for $462.21. find the markup rate. round to the nearest tenth of a percent.

43

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

what is the answer?

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here