How old was Lisa x years ago if she is now 13?

Which expression represents this?

x + 13

x - 13

13 - x

Each class at Greenville school has 22 children enrolled. the school has 24 classes how many children are enrolled at Greenville school?

If A is uniformly distributed over [-12,16], what is the probability that the roots of the equation x^2+Ax+A+3=0 are both real?

Given the equation below, which of the following shows the quadratic formula correctly applied? 3x^2 - 4x-12 = 0

The next model of a sports car will cost 5.1% more than the current model. The current model cost 54000 how much will the price increase in dollars what will be the price of the next model

Eighty-six million forty thousand

The price of a tent was decreased by 15% and sold for $76.49. What was the orginal price of tent in dollars

Simplify the expression 10 + - 6u + - 5 (-6u + - 10)

Last week we drove to drove to Detroit, at an average speed of 50 miles per hour, the trip took 4 1/2 hours. how far was it?

What number should be added to 95 to get a sum of 73

4 - (x+2) <-3 (x+4) A. X<-7 B. X>-7 C. X<-9 D. X>-9