Part a: solve the equation 7x + 3x - 18 = 6(x+3), and show your work.

part b: use this list of properties to justify each step of your math work. justifications maybe use more than once if needed

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

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.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?