Which of the following phrases translates to x - 9? nine minus a number
nine decreased by a number
the difference between nine and a number
nine subtracted from a number

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?

Explain how you can show five less than a number using algebraic expression