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200 children took part in a convert. there are 4 times as many girls as boys. how many girls were there? how many more girls than boys were there?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.