2a - 4c = 20

-3a+b-4c=20

- 4a + 2b + 3c = - 15

Mr. singh bought 2 adult zoo tickets for a total of $22, as well as 4 children' tickets. he spent $54 in total. how much was each children's ticket?

What is the value of f (x) = 25^2-10x+1

When you multiply a funtion by - 1 what is the effect on its graph

What statement describe the expression 18+1/2 * (9-4)

Which number is equivalent to 0.0000001: 10^7 or 10^-7

At smith mountain lake boat rentals, it cost $25 per hour to rent a pontoon boat, plus a one-time charge for cleaning. The Bengel family rented a boat from 11 am - 6:30 pm and paid $226.50.

Which system of equations has infinitely many solutions? A) 6x + 3y = 12 3x + y = 9 B) 2x + 3y = 6 4x + y = 8 C) 12x + 9y = 6 4x + 3y = 6 D) 5x + 10y = 20 2x+4y=8

A square orange rug has a yellow square in the center. The side length of the yellow square is x inches. The width of the orange band that surrounds the yellow square is 11 in. What is the area of the orange band?

Can the function f (x) = x²-4x+4 be factored? If so, write the factored form.

A manatee eats the equivalent of about 12% of its body weight each day. Write an equation that represents the amount y (in pounds) of food a manatee eats each day for its weight x. Identify the independent and dependent variables.