Answer:
x=11
Step-by-step explanation:
hope this helps
4 times 7 = 28
3 times 7 = 21
It will take him 21 days to make 28 bird houses.
4.16 rounded to the nearest whole is 4.2.
The percentage increase; you'll need to take the new value and subtract it by the old value.
16 - 13 = 3
Next, you'll divide 3 by the original value.
3 ÷ 13 = 0.23
And multiply by 100
The percentage increase of friends is 23%