What is the value of the ecpression 2x^2+3xy-4y^2when x=2 and y=-4?

A family rents a cottages for $ 79.95 a day for 7 days. About how much does the family pay for the cottage?

What is the product of 289 and 7

The cost of 5 pounds of apples is $6.45. Which statements can be used to solve for a, the cost of each pound of apples? Check all that apply.

Find the horizontal and vertical asymptotes of the curve. y = 3x2 + x - 9 x2 + x - 72

Lucy had been doing a little bit of work around her mom's office, and her mom planned on paying Lucy with the funds from a reimbursement check. Describe two ways that Lucy's mom could pay her with funds from the mom's reimbursement check.

Whats the common multiple of 5, 10, and 15?

Given that 3m + 2n = 17, find the value of n when m = 3.

Calculate the average rate of change for the given graph from x = 3 to x = 5 and select the correct answer below.

A housing society consisting of 5500 people needs 100L of water per person per day. the cylindrical supply tank is 7m high and has a diameter of 10m. for how many days will the water in the tank last for the society?

A cookie factory uses 1/4 of a barrel of oatmeal in each batch of cookies. The factory used 1/2 of a barrel of oatmeal yesterday. How many batches of cookies did the factory make yesterday?