You so much!

11. for every 3 laps that olivia swims, alexis swims 4 laps. during practice, they swam a combined total of 63 laps. how many laps did alexis swim during practice?

26 laps

Step-by-step explanation:

Olivia : Alexis = 3 : 4

3x + 4x = 63

7x = 63

x = 9

Alexis = 4 x 9 = 36

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c