A circles DIAMETER is twice as long as its radius
Hope this helps you :)
The employer contribution does not get deducted from her paycheck. To find the amount deducted from her check we take 4% of 1305.60 = 0.04(1305.60) = $52.22.
Greetings!
Convert both terms into improper fractions:

Find the LCM.

Simplify.

Convert to Mixed Number.

The second answer would be correct.
Hope this helps.
-Benjamin