If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84
Hope this helps. :)
Answer:
36
Step-by-step explanation:
add the total that signed up for chemistry with the total that signed up for english which would be 20+16=36
Answer:

Step-by-step explanation:
We are given the equation
. To find y-value when or at x = 3, simply substitute x = 3 in which gives us
then evaluate the value as we obtain the y-value or final answer to the question:

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