If AB represents 33.333%, what is the length of a line segment that represents 100%

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Can someone me i’m confused. will give brainliest and a whole bunch of points