The directions on a lawn-mower manual call for a mixture of oil and gasoline that is 25% oil. The tank holds 16 gallons. How many gallons will be oil?
A- 4 gallons
B-5 gallons
C-3gallons
D-12gallone

Can someone answer this question? : )

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?