4 times 7 = 28
3 times 7 = 21
It will take him 21 days to make 28 bird houses.
Answer:
C
Step-by-step explanation:
To solve, use inverse operations:

Now we solve for both +/- 7.
x+6=7
x=1
x+6=-7
x=-13
Answer:
40ft
Step-by-step explanation:
Please kindly see the attached file for more explanation
The order of the sides of the triangle is bc>ab>ac as per the rule that side opposite to the larger angle is larger