20) use the distributive property to factor the expression. 10xz − 20yz a) z(10x − 20y) b) 10(xz − 2yz) c) 10z(x − 2y) d) xyz(10 − 20)

What expression is equivalent to (2x-1)(x-3)?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18