43 bottles can be filled in 2 minutes write the two ratios implied by this statement how long would it take to fill 860 bottles

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.

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Factor the expression using the gcf. the expression 21m−49n factored using the gcf