Aclockwise rotation of 90 is the same as a counterclockwise rotation of

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

For the equations below which statement is true ?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1