Point y is the midpoint of segment xz. if xy = 2(3x +1) and yz = 5x + 22, find the value of x. x = 20 x = 24 x = 18 x =11

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Answer for 10 points show work you guys in advanced < 3

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)