100 !
what is the equation of this line in standard form?
9x−8y=23
8x−7y=−25
8x−9y=−23
8x−9y=23

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Me asap! what is the slope of this line? enter your answer in the box.

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2