Answer:
all you got 2 do is plug in 4 for the value of x.
Step-by-step explanation:
4r- 21
4 - r= r and r+ 21/= R21 and Simplified Is -4 and R21
60
16/20 times 75
4
The first 50 widgets for $2
50/2=25
120/6=20
200/9=22.22 repeating
15 dozen = 180 cookies
180 ÷ 24 = 7.5
7.5 x 2.5 = 18 3/4 cups of flour