Sarah is the president of the drama club and wants to publish a newspaper expenses are $.90 for printing and mailing each cop plus $600 total for research and writing. the price is the newsletter is $1.50 per copy how many copies of the newsletter must the club sell to break even

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

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.