Which statement is true about f(x)=square root x

Acircle has a circumference of 7.850 units. what is its radius?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is