HELP NEEDED ASAP

Find the measure of the missing angles.

Solve the system of equations. y= 2x y= x^2 - 15

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample