7times the sum of q and 8 in algebraic expression

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?