Find the missing number in this proportion 63/21=9/?

How can you isolate the variable x on one side of an inequality

Which statement about the following sequence is true? - 10, - 3, - 10, - 3, - 10, ... Question 3 options: It is arithmetic. It is geometric. It is neither arithmetic nor geometric.

A mathematical sentence that contains an equal sign is an

Which was a major cause of environmental pollution in American cities during the late 1800s? A. electric-powered streetcars B. diesel-powered railroad locomotives C. internal-combustion engines in automobiles D.

X:y = 5:3 and x+y = 56 workout the value of x-y

Is 70+12 an expression or an equation

Simplify 2 · 5^2. A. 49 B. 20 C. 100 D. 50

Jill, meg and Beth are sisters. Jill is 2 yrs younger than meg. Beth is half as old as meg. let m represent megs age. Write two other algebraic expressions based on this situation.

Solve the right triangle. 51.50

Circle p has center p (2,0) and a radius 20 circle q has center q (0,4) and a radius of 2