A teacher is arranging desks in a room into rows. Each row has the same number of desks. The teacher has more than one row of desks. Which of these could be the number of desks in the room? Check all that apply.
16
19
23
21
25

Find the value of x for which line a is parallel to line b

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.