Question

Find the missing number of each unit rate

Answer 1

All you need to do is cross multiply for each one and then solve
$21 = 7x$
and
$16 = 4x$
then you solve which gives you 3 and 4 for your missing values

Answer 2

Answer:

3 and 4

Step-by-step explanation:

21/7 = x/1

x = 21/7*1 = 3

16/4 = y/1

y = 16/4*1 = 4