The perfect orange calls for 2/3 parts yellow paint and 1/4 parts red paint.
a) how much yellow paint do you need if you use 1 cup of red paint?
b) how much red paint do you need if you use 1 cup of yellow paint?

The sum of a number and 5 times the number is 18.find the number

Situation: an archaelogist in turkey discovers a spear head that contains 54% of its original amount of c-14. n = noekt no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years find the age of the spear head to the nearest year

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin