Mary wants to buy three tickets for a concert. She has earned $135 and each ticket cost $50. She borrows the
rest from the bank and buys the tickets.

B) How much more money will Mary need to earn to pay
back the money she borrowed from the bank?

C) How much money will she have after she pays back
the loan she borrowed from the bank?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.