Express 50 as a fraction of 80.

Give your answer in its simplest form.

5/8

Step-by-step explanation:

To express 50 as a fraction of 80, we simply put 50 as the numerator and 80 as the denominator:

50 / 80

Now, we find the highest common factor of these two numbers. The highest common factor is 10, so the fraction becomes:

(5 * 10) / (8 * 10)

Striking 10 out of the numerator and denominator:

5/8

This is 50 as a fraction of 80 in its simplest form.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm