The sum of n terms is given by Sn=n÷2(n+8)find the first term and the common difference ​

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

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost