HOW we suppose to know what’s all real numbers just but the letter of that answer .

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.

What term makes it inconsistent y=2x - 4

Which statements are true about additional information for proving that the triangles are congruent check all that apply