Which of the following correctly relates the measures of the diameter (d) and radius (r) of a circle?
a) d= r/2
b) r=2d
c) r= d/2
d) d= 2/r

Cumulative examcumulative exam active13time remaining02: 44: 18the graph represents the data cost for monthly internetservice for a cell phone.which function, c(x), represents the monthly cost in dollarsin terms of x, the number of gigabytes used in a month? cell phone internet service(15,5x + 10150,0sx522 < x < 664x115, osx< 25x + 20, 2< x< 650, 65815%,monthly cost (s)20x + 5| 50x,0 < x < 22 < x < 664x( 15x, osx< 2c(x) = 5x + 10, 2< x< 6150x, 65 x5+1234 5 6 7 8 9 10 11 12gigabytes used

Which expression is rational? 6. , square root two, square root 14, square root 49

Which diagram best shows how fraction bars can be used to evaluate 1/2 divided by 1/4?