10meters=1000cm
1000-210=890
Mary has 890 centimeters of thread left on the reel.
The answer to that is -3a+4b+12x-9y-4
Answer:
angle6=angle8=71
Since no need step by step explanation, I'll just tell you the answer!
Answer:
proper fractions
Step-by-step explanation:
Proper fractions have a numerator that is always less than the denominator. In arithmetic, using positive numbers, proper fractions represent the numbers between 0 and 1. , , and are all proper fractions. Improper fractions have a numerator that is greater than the denominator.
The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.
<h3>What is division?</h3>
The division means the separation of something into different parts, sharing of something among different people, places, etc.
The expressions are 2.5 × 10⁻³ and 7.1 × 10⁶.
We have to divide 2.5 × 10⁻³ from 7.1 × 10⁶.

The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.
More about the division link is given below.
brainly.com/question/369266