The ratio of girls to boys in a classroom is 3: 5. kevin says there must be 8 students in the classroom. which explains whether kevin is correct? kevin is correct because 3 girls + 5 boys = 8 students. kevin is correct because 5 girls + 3 boys = 8 students. kevin is incorrect because 3: 5 may be a simplified ratio. kevin is incorrect because the ratio 3: 5 does not compare different units.

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65