Please help answer this question, out-of-box algebra. I don't understand where to start. I would appreciate an explanation

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red