What is the value of the expansion -4b + 8c + 12 -8b -2c + 6 when b = 2 and c = -3​

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Solve the following system of equations express your answer as an ordered pair in the format (a,b) with no spaces between the numbers of symbols 5x+2y=22

Write an expression that shows 3 more than 5 times a number