70(0.21) + 99(0.23) + 91(0.23) + 90(0.33)
= 14.7 + 22.77 + 20.93 + 29.7
= 88.1%
Answer:x=-8
Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8
We know that <span>Lola walks 4/10 mile to her friends house. then she walks 5/10 mile to the store.
To solve the problem we have to use addition.
4/10 + 5/10 = 9/10
Lola walks 9/10 miles. </span>
Width = W
Length = 3 times w = 3W
Area = length x width = 3W * W = 3W^2
