Heather has a rectangular yard. She measures it and finds out it is 24 1/2 feet long by feet wide. a. She wants to know how many square feet of sod she will need to completely cover the yard how much sod will Heather need to cover the yard?

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?