Write a number of grams between 10 and 20 and then write an equivalent amount of milligrams

Select all the statements that apply to this figure

Four quarts of a latex enamel paint will cover about 200 square feet of wall surface. how many quarts are needed to cover 98 square feet of kitchen wall and 52 square feet of bathroom wall

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.