Which should be calculated first to solve this story problem?

the local bookstore has $500 to spend on new books each month. in january, it bought 20 copies of a new music book for $12.50 each, 15 copies of a new travel book for $9.95 each, and it donated $45.50 to the local children's charity. how much money did the bookstore spend on books in january?

a.
the total amount donated to charity each year

b.
the total amount spent on music books or on travel books

c.
the total amount the bookstore has to spend on books each year

d.
the amount of money left over after buying the books

The answer s b because the rest was spent on music books and travel books

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

chiken

step-by-step explanation: