1.solve the inqulitey m-7<6

Question

m<-13
m<1
m<-1
m<13

2.n-8>5
n>-13
n>1
n>13
n>-1

3.p+5<10
p<-15
p<5
p<15
p<-5

4. the science class is taking a trip to the science center. There are 20 students and an unknowed number of adults. The bus holds at most 35 what is the greatest number of adults that can join
5
10
15<--
75

help please