0.00125mi squared=?ft squared

Hello everybody. can anybody me come up with detailed study plan on what topics to study from algebra 1 & 2, trig, and any other topic nesscery for success as a new beginner in pre-calculus. i dont have much math history but the basics. this will greatly me.

Evaluate the expression. (9 + 5)(3 + 2)0

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b