300-7[4(3+5)]3•3 does the bracket mean you divide I can’t remember I know you would use pemdas

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?