Insert () into the equation to make each number sentence correct.

7 x 4 - 2 + 1 = 21

The volume of a cube when one side is 4

Of the students at a certain college, 20% regularly attend the football games, 40% are first-year students, and 50% are upper-class students who do not regularly attend football games. Suppose that a student is selected at random.

What is the y-intercept of the line given by the equation below? enter your answer as an ordered pair. y = 6x - 9?

What is the following sentence written as an expression and the product of 3 and 6to4

Is 2, 6, 18, 54 arithmetic or geometric

If - 1 is a root of f (x), which of the following must be true? A factor of f (x) is (x - 1). A factor of f (x) is (x + 1). Both (x - 1) and (x + 1) are factors of f (x). Neither (x - 1) nor (x + 1) is a factor of f (x).

What is the average speed of a cheetah that sprints 100 miles in 4 seconds? How about if it sprints 50 miles in 2 seconds?

A mother is 4 times as old as her daughter. in 3 years, the mother will be 3 times as old as her daughter. how many years old is the daughter now?

What is 0.947 founded to the nearest tenth

1) choose a number 2) Multiply it by 3 3) Add 3 4) Divide by 3 5) Subtract the number chosen in step 1 from your answer in step 4 Your answer should be 2, explain why it works?