you have some marbles. when you make a shape of an equilateral triangle, you either have 5 extra, or you need 10 more to complete the shapehow many marbles do you have? how long is one side of your triangle?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.