Answer:

Step-by-step explanation:
- this can be done by simple manipulation .
- in the given equation, A is the subject.
- so, by the above statement you can understand the meaning of making something as a subject.
- given equation: A = 1/2 bh
- multiply both the sides by 2,
2A = bh
- divide both the sides by h,

so, the required form is : 
Answer:
4 miles in 1 day
Step-by-step explanation: Multiply 8 by the numerator for how many miles of road; That is how many halves of miles are built in a single day. Simplify that and they build 4 miles of road a day.
Answer:
t = 5 seconds
Step-by-step explanation:
It is given that, the height h, in feet of a ball above the ground is given by :

Where t is in seconds
We need to find how long does it take the ball to hit the ground? When it hits the ground, its height will be equal to 0. So,

Neglecting negative time.
It means ball will take 5 seconds to hit the ground.
Answer:
5
Step-by-step explanation:
0+3+6+7+9=25
25/5=5
Answer: the number is 20, as the denominator 9 multiplied by 4 is 36. simply multiply the numerator by 4.