The sum of the ages of a father and a son is 56. Four yrs ago the father was 3 times as old as the son. Find the current age of them both.

2 (3x+5) - 4 (x-1) what is equivalent in simplified form

There where ten baked goods in a basket four of them were sold write a fraction to show the part of baked goods that were not sold then write a equivalent fraction to this number

If you're driving at 25 miles per hour through a school zone and a child runs out in front of you, how much distance will your car cover before stopping?

A cutting tool fails due to flank wear while machining. It is observed that the tool life at a cutting speed of 160 m/min is 5 min, while at 120 m/min, it is 17 min. What is the approximate tool life at a cutting speed of 100 m/min?

Kate and ashton have been approved for a $200,000 15-year mortgage with apr of 5.5%. How much is thier first monthly payment will go to interest

What is the x-intercept of the line with the equation y = 1/2 x-3

The half life of ^134Ba is 28.7 hours. how much of a 16.2 sample of 134 Ba will be left after 60.00 hours

WXY is congruent to CBA, If

The school football team needs to raise at least $850 to buy new practice equipment. The team received a donation of $125 and also earns $4 per ticket sold.

Describe when to use a series and when to use an equation. For example, when would you use: f (x) = 3x+5 and when would you use: score = 2 + 3n (where n is 1, 2, 3 ...)