Answer:
17.5, divide 70 by 4
Step-by-step explanation:
what i said above
Let's compare the given function with the model for a quadratic equation:

Since the value of a is positive, the parabola has its concavity upwards, and the function has a minimum value.
The minimum value can be found calculating the y-coordinate of the vertex:

Therefore the minimum value is -24.
0.0900-0.0088=0.0812
I did it by thinking of it as 900-88=812
Step-by-step explanation:
1. (5/18) × (3/20)=
(5×3)/(18×20)=
15/360=1/24
2. (1/24) × (6/12)=
1/48