If the relationship between x and y is quadratic,
which value of y completes the table?
x: -3 -1 1 3 5
y: 21 7 ? 27 61

A) 3
B) 7
C) 9
D) 17

Pls. explain why you picked that answer

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.