Solve the equations 7x+9y=27 and 4x+5y=13 by combining the equations

The plaid flannel shirt that you have wanted for months is now on sale at the mall for $35. Sales tax at the mall is 7%. Before you leave to buy the shirt, you see an ad for the same shirt for $30 with a sales tax of 9.5% at a shop 20 miles away.

The tax rate as a percent, r, charged on an item can be determined using the formula - 1 = r, where c is the final cost of the item and p is the price of the item before tax.

I'm confused on how to solve the math equation. Y/3+1=6

A realty developer sell residential lots fir 4,000 per square meter plus a processing free of 25,000. one of the lots the realty developer is seling cost 625,000.

Which of the following is a correct statement about a positive proper fraction? A. a positive proper fraction has a numerator which is greater than or equal to the denominator. B.

What is 2.3 less than 5

Jack reads 4 books on Monday. He reads more on Tuesday. He reads 7 books total. Hiw many books does Jacj read on Tuesday

A soccer league has 180 players. Of those players 50% are boys. How many boys are in the soccer league?

49 = 72 in logarithmic form

Three friends split the cost of a pizza and a salad. The pizza cost$15 and the salad cost $6. Which expression can you use to find how much each person owes