Answer:
b=6
Step-by-step explanation:
9/b=21/14
9/b=3/2
9=3/2b
9=3b/2
9×2=3b
18=3b
18/3=b
6=b
b=6
Well y= 25 mins
2/5= 5 mins, x=2
so the answer is a
Area of a triangle is,

Substitute the numbers,


The above number is the base.
Using the pythagorean method let's calculate for "c" the hypotenuse.

Substitute

Solve,

Simplify,

Calculate one last time,

The hypotenuse is 37 inches.
Answer:
The card had 41.60 originally
Step-by-step explanation:
3 x 5.20 = 15.60
15.60 + 26.00 = 41.60
unless there is tax