The first and last of an a. p are 1 and 121 A. Find the number of term in the a. p
B. Find the common different between them if the sum of it's term is 549

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

Solve for the equation. 4x - 13 = 2x + 9

Asap! i need this done today and i really don’t understand it. some one ! will mark