Solve the following systems algebraically using substitution.

2x - y = 4 r - 3y = - 3

x=

y=

What is seven plus seven?

Use a common denominator to determine whether the ratios form a proportion. 6 : 15 and 30 : 80

What Is The Perimeter of 5,8,6,4

A recent census listed the population of a city as 831,982. Marisol rounds the population to 830,000, and Lindy rounds the population to 800,000. Who rounded the population correctly? Explain, and which rounded pop is a more accurate estimate?

A real estate agent works on a 5% commission. What is her commission on a house that she sold for $705,200? Follow the problem-solving process and round your answer to the nearest cent, if necessary.

The number of gallons of water in a tank that already has 300 gallons in it after being filled at 35 gallons per minute for m minutes

The Tennis Teams of Atlanta need to older tennis balla for the upcoming tournament. They will need 2,367 tennis balls. If each can hold 5 tennis balls, how Many will they purchase

42 is subtracted from 42% of a number. The result is 42. What is the number?

The temperature is changing every day by negative 7 over 18 degrees Fahrenheit. What will be the change in the temperature after 3 days?

The equation of the polynomial function is: f (x) = (x + (2 + i)) (x + (2 - i)) (x + 5) f (x) = (x - (2 + i)) (x - (2 - i)) (x - 5) f (x) = (x - (2 + i)) (x - (2 - i)) f (x) = (x + (2 + i)) (x - (2 - i)) (x - 5)