can someone do these please ? i have a score of 19 in math and i really need the help. thank you:) (marking brainlesiest)

it would open into a square depending on the type of envelope i’m not sure about the second part

6 cm

step-by-step explanation:

60: 45 =12: 9 =4: 3 so the answer is 4: 3

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex