It costs Marita $31.40 to buy 2 gallons of paint for her room. Write an equation relating the total cost y to the number of gallons of paint x. ANSWER PLSS

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce

Asandwich shop has 18 tables. each table seats up to 4 people. to find the greatest number of people that can be seated, you can solve p4 ≤ 18. which step is the best way to solve the inequality? plz asap i repeat plz