If you were able to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation. 15x-y=-6 5x-3y=-13

Emily meal cost 32.75 and Darren's meal cost 39.88. Emily treats Darren by paying for both meals, and leaves 14% tip. Find the total cost

Which number is larger? -20 or - 15

Find the derivative of the function using the definition of derivative. f (x) = 1 5 x - 1 6

Addison buys 5 neon tetras and 4 cardinal tetras for $15.50. Caden buys 6 neon tetras and 10 cardinal tetras for $26.40. Write a system of equations that can be used to find n, the cost of 1 neon tetra, and c, the cost of 1 cardinal tetra.

Solve for x in the equation x squared minus 14 x + 31 = 63. x = - 16 or x = 2 x = negative 7 plus-or-minus 3 StartRoot 7 EndRoot x = - 2 or x = 16 x = 7 plus-or-minus 3 StartRoot 7 EndRoot

You and a friend sell hats at a fair booth. You sell 16 hats on the first shift and 21 hats on the third shift. Your friend sells x hats on the second shift. Write an expression for the number of hats sold.

How many milliliters of water equals one gallon?

Percents are the result of expressing numbers as a part of?

UR Probability of independent events Amal A number cube is rolled and a coin is tossed. The number cube and the coin are fair.

6x+1/2y=3 into slope intercept form