Answer:
Jewel is 7 years old
John is 1 year old
Dave is 17 years old
Step-by-step explanation:
From the question we are told that:
Jewel age is 
John age 
Dave's age a Year ago

So that Dave.s age this Year could be

Simplifying Equation for Dave's age we have





Dave is 17 years old
Therefore
Johns age is



John is 1 year old
Multiples of 30 : 30,60,90,120,150....
and the first one that 4 goes into evenly is 60
Answer:
A (I believe)
Step-by-step explanation:
since the part with the triangle is 6 yards, and it looks about half of that whole side, I'm going to assume that that side is 12 yards, and since it's a square each side will be the same length. so multiply 12 and 12 to get 144.
Now divide that by four so you can get the area of a fourth of the square and find the area of the triangle. 144 ÷ 4 = 36
Now divide 36 by 2 to get the area of the little triangle. 36 ÷ 2 = 18
Now divide 18 by 6 to get x. 18 ÷ 6 = 3
In conclusion, the answer should be A.
Hope this helped!!! :3