Harold was 5 years older than Mary. In 10 years he found that 4 times his age exceeded twice Mary's age by only 50. How old were Harold and Mary in the beginning?

Mercury melts at 38 below zero. write this temperature as an integer

The town of manchester (50,000) has the shape of a rectangle that is 5 miles wide and 7 miles long. What is the population density, in people per square mile, in Manchester? Round your answer to the nearest whole number of people per sqaure mile.

How do i simplify 3y-4y+3y

Raj paid $5.04 for 6 cookies. Heath paid $4.00 for 5 cookies. Which of the following statements is true? Raj paid less per cookie. Heath paid less per cookie. Raj and Heath paid the same per cookie.

From the equation 2x+9+3x+x=_x+_, use numbers 0-9 to find no solutions, one solution, or infinitely many solutions

In this equation, is 6 a standard number. n + 6 = 20

Unoccupied 25 story towers sold for 3/4 off their original value. If the towers sold for 16 million what was the original value

Is 1.1 bigger than 0.7

How to add two negative numbers

When a number x is multiplied by 6, the result is 3/8