What is the difference quotient of the function, g(x)=√x, x ≥ 0?​

Idont get this question can someone me solve it? ** the distance light travels in one second (1 light second) is about 1.86 ×10^5 mi. saturn is about 475 light-seconds from the sun. about how many miles from the sun is saturn..my guess is 8.83* 10^7 you so much

Can someone me do math because i am having a breakdown rn because i don’t get it

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi