Elena spent 45 minutes at the library, half an hour at the grocery store, 20 minutes visiting a friend, and arrived home at 4: 10 p. m. what time did she leave home?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)