Answer:

Step-by-step explanation:
Given

See attachment
Required
Length ML
First, calculate x using the following equivalent ratios

Express as fraction

Cross Multiply

Substitute values:

Expand


Collect like terms


Using a calculator:
and 
Given that:

Substitute values for x


ML cannot be negative; So:

Answer:
Its below
Step-by-step explanation:
The equation is 10.08 / 1.26
n = 8 days
Answer:
y = 6x - 11
Step-by-step explanation:
An arithmetic sequence is a linear function. This means it steadily increases or decreases through addition/subtraction by a constant amount. Here the sequence grows by adding 6 each time.
-11 + 6 = -5
-5 + 6 = 1
1 + 6 = 7
etc....
Since this is linear, its equation has the form y = mx + b where m is the slope and b is the y-intercept. The slope is m = 6 and b = -11.
y = 6x - 11
Answer:
131.95cm
Step-by-step explanation:
Circumference of a circle is 2 × pi × r
= 2 × pi × 21
= 131.95 cm