Which statements are true?
choose all answers that are correct.
a.
–13 + 25 = 10 + (–22)
b.
20 + (–6) > 31 + (–19)
c.
8 + (–12) < –17 + 14
d.
–11 + (–15) > 6 + (–29)

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2

Leila is buying a dinosaur model. the price of the model is xxx dollars, and she also has to pay a 7\%7%7, percent tax.