O Joshua had purchased 20 apps on his iPhone. If 1/5 of the apps were puzzles and 2/5 were games, how
many apps were neither puzzles nor games?

8
12
16
4

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Three times the sum of a number and seven is negative thirty-six. what is the number?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?