Answer:
1. 
Step-by-step explanation:
These are simple multiplication questions of fractions. We multiply numerator with numerators and denominators with denominators. If numerator and denominator is both divisible by same number we can divide them for simplification.
1. 

2. 
Converting mixed form into fraction form,

Multiplying numerators with each other and denominators with each other

3. 
Multiplying these terms with each other:

Dividing numerator and denominator with 3

Total measure of the triangle is 180
So you set the equation equal to 180 and then solve for x using basic calculation
13x=115
X=8,85
Answer:
10
Step-by-step explanation:
5 miles per hour it takes 2 10th to make 1 mile
Answer:
a
Step-by-step explanation: