Twice a number added to another number is 15. The sum of the two numbers is 11. Find the numbers. Write the numbers from least to greatest

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost