Answer:
Solution answer is 283
Step-by-step explanation:
15 x 18 + 12 ÷ 3 + 9
Using D M A S rule,first divide
=15 x 18 + 4 +9
=270 +4 +9
=283
5^2 + 9^2 = X^2
25 +81 = x^2
106 = x^2
X = sqrt(106)
x = 10.29
Ladder is 10.3 feet long
5:4
40:32
20:16
10:8
A