I need help with this..?

195 square yards.

Step-by-step explanation:

A rhombus can be split into four triangles, which is a much easier process to handle.

Area of a triangle is (b * h) /2, where b and h are the base and height of the triangle.

The base of each triangle is 7.5 yards, and the height is 13 yards.

(7.5 * 13) / 2 = 48.75

Multiply this by 4, as there are four triangles.

The area of the rhombus after multiplying is 195 square yards.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

addition

step-by-step explanation: