How many solutions does this system have

2x+y=3

6x=9-3y

one none infinite two

Two numbers are respectively twenty percent and ten percent more than the third number. How many percent is the first number more than the second?

Kasey has a yearly income of $45,000. He has a budget which lets him know what percentage of his income is spent on different categories.

The value V of a Porsche 718 Cayman that is t years old can be modeled by V (t) = 420,000 (0.965) t (a) What would be worth the car′s worth in 2 years? (b) In how many years will the car be worth $325,000?

A new car is purchased for 16400 dollars. The value of the car depreciates at 8.25% per year. What will the value of the car be, to the nearest cent, after 10 years?

They city Tim lives in has 106,534 people what is the value of the 6

For what value of b does (1/12) ^2b x 12^-2b+2=12 -1/2 -1/4 1/4 no solution

Suppose you have lunch with four friends and the total check (with tax and tip) is $155. How much should you each pay if you split the check evenly?

150 of 300 students at smith middle school are in band. of those only 10% play saxophone. next year enrollment is expected to reach 400 students. About how many of those students will play saxophone?

Julie and Jim live 230 miles apart. At the same time, they start driving toward each other on the same road. Julie's constant rate is 60 mph and Jim's constant speed is 55 mph. How many hours will it take them to meet?

Find the value of each expression when a=-2 b=-3 and c=5 5a - (4b+6c) = ?