6+3√10
I don't know the steps to be honest. But that's what I got.
Answer:
The equation of the line is:

Step-by-step explanation:
A line perpendicular to the given one is going to have a slope equal to the opposite of the reciprocal of 1/4. That is the slope of the new line will be "-4".
Now we write the point-slope form for a line using the info provided of slope -4 and point (5, -4):

If each pizza takes 2.5 cups then we can multiply the number of pizzas by

and cancle common units to get the total number of cups:
Answer:
D
Step-by-step explanation:
If you had an equation such as 50%x=20, I would convert the percent to a decimal first. So, 0.50x=20. Then I would change the decimal into a simplified fraction. In this case it is 1/2. So, 1/2x=20. Then I would reciprocate the fraction and multiply that by 20. So x=20*2/1. From this, we would get x=40/1, but the 1 is not necessary, so we can write the final answer as x=40.