no more than 80
means cost has to be LESS THAN or equal to 80
45+5p<80
first you wrote the wrong equationeven though you underlined it
anyway
45+5p<80
to graph
solve for p
45+5p<80
minus 45 from both sides
5p<35
divide both sides by 5
p<7
p is less than or equal to 7
so shade 7 and to the left of 7 to infinty