The numbers 19 and 28 are rounded to the nearest ten and then multiplied to estimate the product. What is the best estimate of 19 * 28 based on this method?

200

300

600

900

There are 28 students in a mathematics class. If 1/4 of the students are called to the guidance office, 1/3 of the remaning students are called to the nurse, and, finally, 1/2 of those go to the library. How many students remain in the classroom?

What is the derivative of 7

The sum of three consecutive even integers is 36. Let x represent the first integer, x + 2 represent the second integer, and x + 4 represent the third integer.

A simple quiz consists of five a. True b. False questions. a student comes completely unprepared for the quiz and is left to randomly choosing between true and false for his answers.

x2 - 4x + 4 A. (x + 2) 2 B. (x - 4) 2 C. (x - 2) 2 D. (x + 4) 2

Elisa withdrew $20 at a time from her bank account and withdrew a total of $140. Francis withdrew $45 at a time from his bank account and withdrew a total of $270. Who made the greater number of withdrawals? Justify you answer

A spinner has 8 sections. 2 are grey 6 are blue. The spinner is spun twice what is the probability that the first lands on grey and the second lands on blue.

You deposit 800 dollars into your savings account how much simple interest will 800 dollars earn in 6 months at 7.25%

Expand And Simplify (3x+4) (2x+3)

A rectangle's base is 7cm longer than its height. The rectangle's area is 98cm.