12-(-6)+7+(-8)=

14+(-6)-(-8)+5=

-9-8+15+(-3)=

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

Hello, i need compare km^2 and km. what's difference in this?