4/5 + 2 /5 ÷ 2/ 3(they are fractions)PLEASE HURRY

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.