A Number plus it's half is 21

How to write an equation?

84 is 35% of what number?

Which values represent the dependent variable? A. {7, - 3, 8, 3} B. {-3, - 2, 1, 5} C. {1, 7, - 2, - 3} D. {-1, 2, - 5, 3}

Sound can travel incredibly quickly: 1 mile in about 1 12 of a minute. Based on that, what is the approximate speed of sound? Simplify your answer and write it as a proper fraction, mixed number, or whole number. miles per minute

The height of a cone is equal to the diameter of the base. (2x height, x radius) What expression represents the volume of the cone, in cubic units? A. 2/3 πx^3 B. 4/3 πx^2 C. 2πx^3 D. 4πx^3

Ninety percent of what number is 40.5?

How many solutions are possible for a system of equations containing exactly one linear and one quadratic equation?

If BY = 6, YC = 10, AX = 18, then XC = a: 10.8 b:5 c:30 d:48

The ratio of Isabella's money to Shane's money is 3:11. If Isabella has $33, how much money do Shane and Isabella have together? Use diagrams to illustrate your answer

Similar triangles are congruent. a. - always b. - sometimes c. - never

4.2 rounded to the nearest whole number