What data are represented by the stem-and-leaf plot below? three rows of numbers are shown. the key shows that 4 vertical line 1 means 41. row 1 is 3 vertical line 7 8 9 row 2 is 4 vertical line 1 3 7 row 3 is 5 vertical line 2 4?

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25