It’s d, because thats the formula !! mark me brainliest so I can help more people please !!
Take the price of the cheese stick then divide that by the old price. you will get a decimal. New divided by old. You should have some decimal that is 1.something. If its a percent increase of 64 percent you'd have 1.64 as the decimal. good luck.
We have the following:

solving for x

The solution of x is equal to 28, therefore 12 is not a solution of the equation
Ok so
ratio
35/200=x/3000
7/40=x/3000
multiply both sides by 12000
2100=4x
divide both sides by 4
525=x
aprox 525 people
You should try to add 4 and place the 2 in the 3 digit slot