How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 15% antifreeze to get a mixture that is 80% antifreeze? The number of gallons that must be mixed is
(Round to the nearest whole number.)
gallons

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.