Whenever I use the annuity formula, I always get it wrong. Can someone show me the right formula and the right steps? Thank you so much.

Find the future value for each of the following scenarios, where m is the periodic deposit and r is the interest rate. interest future value m 1 earned $ compounding time frequency in years $275 6.6% annually 8 $100 2% semiannually 7 $300 5.6% quarterly 13 $450 4.5% monthly 12 $ $150 6.9% weekly 12 $ $ $ $ $ $ $ $