multiply the radius or diameter by 2.
because there is no drawing, i will tell you what to do. a scale factor means multiply all the dimensions by [some number]. the scale factor is 2, so you will need to multiply the radius or diameter by 2.
(5,4) on a math coordinate plane. you have to graph from the numbers and it is always x first, so 5 on the x coordinate plane and 4 on the y.
you should go make new friends because you
are lonely and have no friends