"four times the difference of -16 and 7 amounts to -92 " written as an equation is

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

Find the values of y: 3y^3(y^2+ 2/3y)=0

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.