If there are 20 of my friends song prank other 30 of there friends and only 10 fell for it but 10 did not how many is = all together

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

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Ms. ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms. ortiz charge per kilogram of tomatoes to make on a load of tomatoes?