A watchtower, built to help prevent forest fires,
was designed as an
isosceles triangle. If the
side of the tower meets
the ground at a 105° angle,
what is the measure of the
angle at the top of the
tower?

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