Pomóżcie potrzebne jak najszybciej się da proszę

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Can you me find the missing length. i attached an image.

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)