He will have 7.75 left from the 20 dollar bill he spent
Hello :
8×2 = 16
and : four zero : 0000
you have : 160000
Area of a circle is π*r²
sub what we're given
49π= πr²
49π= π*r²
r²= 49π/π
r²=49
r=7
The diameter is twice the radius therefore the diameter is 14 units
