7. Write an expression that is equivalent to 5({r - 8). State the property that justifies
your answer.

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x