Lashonda bought some books for $6 each and received a discount of $8 off of her total purchase. She spent $58 after the discount. How many books did she buy?

Write an equation that could be used to answer the question above. Let b represent the number of books. Solve for b

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.