Write an expression that is equivalent to 1/2a -4

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

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

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?