Shayna had some candy to give to her three children. She first took eight pieces for herself and then evenly divided the rest among her children. Each child received four pieces. how many pieces did she start?

20

Step-by-step explanation:

4+4+4 (4*3)= 12

12+8=20

d. 9

step-by-step explanation:

in the table given in the picture, x is the input of the function and f(x) is the output on the given input. in the given table, it can be read as the value of function at -3 is it's respective value of f(x) which is -9.

as we have to find the value of f(3), we will see that what is the value of output on input 3. we can see in the table that the output value at x=3 is 9.

so, option d is the correct answer ..

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.