7. Joshua is rewriting the expression below in an equivalent form. His steps are shown.

Which statement describes the step and the error Joshua
made in that step?
A. Joshua made an error in Step 2. The exponent in the
numerator should be 6-3, not 6+3
B. Joshua made an error in Step 2. The denominator should
be O, not 1.
C. Joshua made an error in Step 4. The value of 52 is 10, not
25.
D. Joshua made an error in Step 3. The expression 5(0-3) is
equal to 5", not 52
Plss help I need this by today

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.