1. Dei has $10 to spend on nail polish. With tax each bottle costs $2.49. Can Dei buy 3
bottles of nail polish?

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.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much