5.
5. angela drives on a county highway for 2 hours. she
travels 112 miles during this time. she averages 22 mph
faster on this drive than she does in the city traffic.
what is her average speed in the city?

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

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.