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

Which is closer to 0.2 0, 1/2, 1

There are 180 white lockers in a school. There are 3 white lockers for every 5 blue lockers blue. How many lovkers sre there im tje school

Is 400 a perfect square

Express the fractions 1/2, 3/16, and 7/8 with an LCD A. 8/16 3/16 14/16 B. 1/4 3/4 7/4 C. 1/32 3/32 732 D. 4/8 6/8 14/8

400 thousands + 600 thousands in standard form

There is 1000 students in a school 20% speak Spanish how much students speak spanish

Why can't the input value be negative?

A regulation-size women's basketball has a diameter of 9.07 inches. What is the surface area of the basketball? Use 3.14 for π and round to the nearest tenth. Enter your answer in the box.

Maddy's fourth grade class is going on 5 field trips. Each has a fee of $12.10. Sack lunches for each trip are an additional $2.75. Round each amount to the nearest dollar to find an estimate for the cost of all 5 trips. A. $60 B. $65 C. $70 D. $75

What is another equivalent expression for 4 (5 + x)