Answer:

Step-by-step explanation:
<u>Area of trapezoid</u>
Given a trapezoid shape whose parallel sides measure b1 and b2 and whose height (perpendicular to the base) is h, then the area of the trapezoid is given by

The dulcimer has the following dimensions


and height h
Thus

Operating


Is the required polynomial
Y-y1=m(x-X1) is the formula.
m is the slope and the y1 and x1 are your points.
leave x and y; the ones without the 1 and solve for y
Ok, at most is basically less than or equal to the number, because it means that at most the number is equal to or less. The equation is 4W > 51
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If you divide a fraction over a number, you can just muplitply the denominator (the number under the line) by the number by which you divide:

99 and 21 are divisible by 3, so we can divide them both by it:

but that's all we can do!
so let's multiply

and it's its simplest form