Henry spent $31.50 on 3.5 pounds of cookies. how much would it cost him to purchase 5 pound of cookies at the same price?

Which best explains why this triangle is or is not a right triangle ?

Hello, i need compare km^2 and km. what's difference in this?

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