Explain how to simplify this expression: 4a + 19 - 3a - 7

Which of the following transformations will always produce a congruent figure?

Ataxi company charges $3 for pick-up plus $0.65 for each mile. select the expressions that represent the cost in dollars for a taxi pick-up and m miles. mark all that apply.

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1