Answer:
18. Commutative property of addition
19. Distributive property
20. Associative property of addition
Step-by-step explanation:
11x10=110
110+40=150
150/6=25
25-8=17
17 is the number.
Answer:
answer is 9cm
opposite side of trapezium are equal
hopes this helps u
Answer:
z*(z - 3) = 520
Step-by-step explanation:
Use the following representations:
Width: W
Length: L = W + 3, or W = L - 3
Area = L*W = L*(L - 3) = 520
Equation b) is the correct one: z*(z - 3) = 520
