Sophie Ruth is eating 50% gram chocolate which contains 30% cocoa how many grams of cocoa are in the chocolate bar

Which expression gives the area of the triangle shown below

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.