Answer:
<u><em>Question 10.</em></u>
Length of the side of the square = 
By Pythagoras' Theorem,
Hypotenuse =
(H > 0)
= 29 m
Ans: 29 m
<u><em>Question 11.</em></u>
By Pythagoras' Theorem,
Length of longer side of 42 km = 42-
(L > 0)
= 32.050 km (5 s.f.)
By Pythagoras' Theorem,
Length of the unknown side =
(L > 0)
= 35.4 km (3 s.f.)
Ans: 35 km
<u><em /></u>
There's nothing you can do it's already simplified, unless you're factoring. The factoring answer would be (5u+3) (u+ 1)
D. 10 x 62
If one row needs 62 bricks and there's 10 rows, you multiply them to get how many bricks nick needs