When my father was 31 i was 8. Now he is twoce as old as me. How old am i?

Can u explain to me this question

Evaluate f (3) for the piecwise function which value represents f (3)

Solve the equation 4/9y=8/3

Translate into an algebraic expression or equation. c cubed minus the product of 5 and q plus 4

Solve 1) x-6 = - 18 x = - 24 x = - 12 x = 12 x = 6 solve 2) 4x+3=47 x=11 x=40 x=44 x=50 solve 3) 1/3x=12 x=4 x=15 x=36 x=39 solve 4) 3x+3=21 x=5 x=6 x=18 x=36 solve 5) 3/2x-4=16 x=20 x=13 and 1/3 x=15 and 1/3 30

Which is a solution to the system of inequalities? y≤-1/2x+3 y≥x+1

painted a fence that was 84 meters long. She was able to paint 4 meters per hour. How many meters of fence were left after Alyssa had been painting for 6 hours?

You want to know how long it will take to get to the town of Fondue Ville on your bike, which is 84 km away. You travel 12 km every 30 minutes. How many minutes will it take you to arrive there?

2 over w =.4 over. 7

The bird population on an island is declining at a rate of 2.2% per year. The population was 3500 in the year 2009. Which answer is the best prediction of the population in the year 2014? A 2730 B 3062 C 3132 D 3423

Drew adds 1/2 cup of wheat flour and 2 3/4 cup of white flour to his muffin batter. how many cups of flourdoes drew add A 1 1/4 B 2 2/3 C 3 1/4 D 3 3/4