The answer for 2 is 320 because you have to keep counting by 40's
Not a lot of details, but the answer is:
b = how many miles is in the bike a thon
b x 1/10 = x
x = how many miles yoshi completer
You could factor it as 2(x + 3)
Let the original number be x
X^2 + 11 = 36
Subtract 11
X^2 = 25
Square root both
X = 5
Solution: her original number is 5
38 seedlings
solve 2n + 2 = 78
subtract 2 from both sides
2n = 78 - 2 = 76
divide both sides by 2
n =
= 38
number of seedlings that can be planted is 38