The difference of two numbers is 7 7. two times the smaller is 6 6 more than the larger. find the two numbers.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?