Solve, using linear combination. p + q = 0
q – p = 8

Which ordered pair, (p, q), is the solution to the system of equations?

(4, –4)

(4, –4)

(10, 1)

(−4, 4)

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?