On Mars, gravity is less than it is on Earth. If you were to kick a Mars rock at an initial velocity of 56 feet per second from the top of a 30-foot hill, the rock's height h would be modeled by the equation h = -1.9t^2 + 56t + 30 where t is time in seconds. A. How high would the rock be after 20 seconds?

B. How high would the rock get?

C. How long would the rock be in the air?

​

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted

c

step-by-step explanation:

idk idk idk idk idk

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.