5x10 is tens place and 5x.1 is tenths place if i that helps :]
84 and to check 84 x 52 = 4368
Just divide 2pie on both sides so your equation would be C/2pie=r
Area of triangle(a) =1/2(b)(h)
a= 1/2((3y-2)(y-1)
a=1/2(3y^2 -3y-2y+2)
therefore the area equals
a=3/2y^2-5/2y+1
solve the second by the same means
Some numbered to check and find it