Which of the following correctly relates the measures of the measures of the measures of the diameter (d) and radius (r) of a circle a) d=r/2 b) r=2d c) r=d/2 d) d=2/r

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?