Answer:
2(5)+5(0)=10
Step-by-step explanation:
There are several ways for this equation to work but a very simple way is shown below.
2*510+5*0=10
10+0=10
10=10
4 percent of 66
0.04 = 4 percent
66 * 0.04 = 2.64
The shipping fee is $2.64
The statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66
What is a linear equation?
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have:
0.1x + 0.25y = 19.9 and
x + y = 100
Let x = number of dimes
y = number of quarters
After solving the above system of equations by substitution method.

y = 66

x = 34
Thus, the statement first, and the statement second are correct because the number of dimes is 34, and the number of quarters is 66
Learn more about the linear equation here:
brainly.com/question/11897796
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Area of square
= 7x7
=49
Area of triangle
=0.5x 7x12
=42
Total area of figure
=49+42
=91
Hence, answer is D