tom is 4 more than twice Andrew's age. Sara is 8 less than 5 time Andrew's age. If Tom and Sara are twins how old is Andrew

A measure of the average value of a population is called

If 7128 = 2^p * 3^q * 11^r find the value of p+q+r

Clay and Clod thought of the same number. Clay divided the number by 7 to that number and added 14 to the result. He got 23. Clod did the same operations with their number, but in the reversed order. What did she get?

Raymond is installing a new kitchen counter top. The counter top is a rectangular piece of quartz that is 5.75 feet long and 2.47 feet wide. Round the length and width to the nearest whole number. Then estimate the perimeter of the countertop

At 7:30 a. m the temperature outside was 27 F. During the next 5 hours, the temperature increases 7 F per hour. What is temperature at 12:30 p. m

What adds to - 3 and multiplies to - 54

White the number 876,543,210.25 in expanded notation

What is the area of a triangle that has a heaight of 5 feet and a base length of 4 feet

Susan will spend less than $39 on gifts. So far, she has spent $21. What are the possible additional amounts she will spend?

The diameter of a circle is 26 m what is the circles circumference