5. Winnie used her calculator to calculate the
square root of a number. She then found the
square root of the number displayed. The
calculator then showed 3. What number did
Winnie first enter into her calculator? Explain
your reasoning.

10010010001010010101001001010010100101010010101010010010101010110010001011010010010001

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

its line 2 i just added the rest or else it wouldn't let me answer