Please solve with explanation will give BRAINLIEST and Bonus Points

55

Step-by-step explanation:

let x be her dad's age then Anna is x + 7

In 19 years

dad's age is x + 19 and Anna's age  = x + 7 + 19 = x + 26

Then her dad is twice as old as her

2 ( x + 26) = x + 19 , distribute parenthesis

x + 52 = x + 19 ( multiply through by 5 to clear the fraction )

2x + 260 = 5x + 95 ( subtract 2x from both sides )

260 = 3x + 95 ( subtract 95 from both sides )

165 = 3x ( divide both sides by 3 )

55 = x

That is her dad is 55 years old and Anna is 18

a. is correct

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all