Using the table, what is the average daily balance of the credit card for the August 1 - August 31 billing period? Round your answer to the nearest cent. Day Activity Adjustment Closing Balance
1 -- -- 850
8 Payment −400 450
16 Purchase +350 800
24 Purchase +600 1,400

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

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.