5. Simplify:

2/5 (4y – 3.4) – 1.8y – 2.3

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x