Numerical expressions for add 12 to 8 then multiply by 5

Which rational number could be graphed between -4 and -5

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?