Find the sum of a finite arithmetic sequence from n=1 to n=18, using the expression 4n-10a. 56b. 116c. 504d. 1,016

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

What is the measure of the smallest angle in the diagram? 15 29 32 45

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.