Classify the expression: 5x + 3x2 − 7x3 + 2.

Linear expression
Quadratic expression
Cubic expression
Quartic expression

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.

Select the number of ways in which a line and a circle can intersect

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,