Aprincipal of $1800 is invested at 4% intrest, compounded annually. how much will the investment be worth after 8 years?

These question are hard can you me with answers

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.