18 is the answerrrrrrrrrrrrrrrrr i th
(x+-0.5) (x+-0.5) = -41.75 so therefore, x = -41.75
1.50x +2=y Where x is how many miles and y is the total
3 decimeter is the same as 30 centimeters, because 1 decimeter=10 centimeter, so if you convert 3 decimeter into centimeters, you'll get 30, 3×10=30cm
30cm=30cm, so your answer is both are equal.
hope this helps...........