Can someone help me with this question

204 cm

Step-by-step explanation:

Triangle area = base × height ÷ 2

6×4÷2=12

Rectangle area = side 1 × side 2

6×10=60

5×10=50

There are 2 triangles, so make 12×2=24, 24 is the surface area of the triangles.

There are 2 rectangles with 5 in one side, so make 50×2=100 of area of this 2 rectangles

Now just sum the areas:

100+24+60= 204

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.