In 10 years time a father will be twice as old as his daughter. 10 years ago he was six times as old as his daughter. How old is each now?

What is the difference between regular convex and concave polygons

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

98 point question what is the record for most points in one