I really need help with answering this

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

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.