Answer:
Step-by-step explanation:
for an error. Chloe needs a 0.75 yard of fabric to make a skirt, so she cuts - 77… ... The directions on a sewing pattern say to cut a extra 15% of fabric to account for an error. Chloe needs a ... yard. Did Chloe cut the correct amount of fabric? ... No, Chloe cut only 15% of the .75 yards of fabric she needed
ANSWER

EXPLANATION
The given expression is

This is having a negative index. We must first of all change to a positive index.
Recall that,

We apply this law of exponents to get,

We cab rewrite the given expression to obtain;

This will simplify to give us,
if you don't have a Unit Circle, this is a good time to get one, you'd need it, you can find many online.
Check the picture below.
21,250 - 20,000 = 1,250
1,250 is the elevation at witch the plane took of.