A study is being done to track what snacks teenagers prefer some snacks mentioned include popcorn, cookies, and candy. What is an independent variable in the study? a. The age of the teens b. Healthy snacks c. How many snacks they eat per day d. Unhealthy snacks a. The age of the teens 63 - (20 + 5) is the same as which answer a. 60 + (25 +3) b. 60 - (25 - 3) c. 60 + (25 - 3) d. 60 - (25 + 3) b. 60 - (25 - 3) Square root of 33 is equal to a. 5.74 b. 3 c. 6.74 d. 11 a. 5.74 (28 3/4) - (5 5/6) = a. 23 1/2 b. 34 1/12 c. 22 11/12 d. 22 c. 22 11/12 Closest estimate of 306 x 288 a. 60,000 b. 9,000 c. 90,000 d. 6,000 c. 90,000 Simplify (5x - 4)(-x + 2) a. 9x - 8 b. -5x^2 + 14x - 8 c. -5x^2 + 6x - 8 d. 5x^2 + 10x + 4