57. how many positive integers satisfy the inequality x + 7 < 23?

a. 15

b. 16

c. 17

d. 29

e. 30

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.