The cost of a video game increased from $225 to $450. By what percentage was the price of the video game increased?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet