Robert and Randall can finish their parents lawn in three hours if they work together. Working alone, it takes Robert one hour less than Randall to finish the lawn. How long does each take alone to finish the lawn?

What the perimeter of 2m 10cm and 45cm of a rectangle

The cost of tuition at Johnson Community College is $200 per credit hour. Each student also has to pay $70 in fees

What fraction is half way between 3/5 and 5/7?

What is 5 over 4 equal - 4 plus 1 over 4

I don't know what - 9/32 is

What is the equation of slope=-8/5, y intercept = 4

Select the correct answer. Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation? A. 4.2E6 B. 4.2E-6 C. 42E6 D. 4.2E5 E. 4.2E-5

Kip is going to meet his family. Predict the number of kilometers that will remain after 7 hours. The table shows the number of kilometers he needs to travel until he reaches them. Enter the correct answer.

What is the main reason the US civil war was started

How do you show 2+3i is a root of x^2-4x+13