Answer:
it would be A:55%
Step-by-step explanation
For percent, to make it easier try to turn it into a 100.
20x5=100
do the same to the 9.
9x5=45.
Now subtract 45 from 100.
100-45=55.
There was a discount of 55%.
Answer:
Around 37, first one
Step-by-step explanation:
add up all the 7th grader number, 40
125 divided by 40 is around 3.125
3.125 times 12 = 37.5
37 because there is no half a kid
Take derivitive to find slope
at x=2
so the slope of f(x) at the point (2,24) is 20
use point slope form
the equation of a line that passes through the point
and has a slope of m is
we are given that the slope is 20 and the point is (2,24)
the equation is
simplify into different form yourself if needed