No more than 80 means cost has to be LESS THAN or equal to 80 45+5p<u><</u>80 first you wrote the wrong equationeven though you underlined it
anyway 45+5p<u><</u>80 to graph solve for p 45+5p<u><</u>80 minus 45 from both sides 5p<u><</u>35 divide both sides by 5 p<u><</u>7 p is less than or equal to 7