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A certain number is three times as large as a second number.  Their sum is 56.  What are the two numbers?

Use the geometric interpretation of slope (rise divided by run) to find the slope of the line.  Then, by identifying the y-intercept from the graph, write the slope-intercept form of the equation of the line.  

Evaluate the expression for the given values.  If necessary, round to the nearest tenth. x=10, y=8

Perform the indicated operation.  Write the result in the form a+bi.

Solve. 3 + 4x = 5 – 16x

According to ESPN.com Mitchell Trubisky threw for 3,223 yards in the 2018 regular season.  If there are 16 games in a regular season, how many feet per game did Mitchell Trubisky throw?  Round your answer to the nearest tenth.  There are 3 feet in 1 yard.

Use a combination of rules for exponents to simplify.  Write answers with only positive exponents.  Assume that all variables represent nonzero real numbers.

According to Ohm’s law, the electric current, I, in amperes, in a circuit varies directly as the voltage, V.  When 25 volts are applied, the current is 2 amperes.  What is the current when 13 volts are applied?

Find the greatest common factor of the terms.

Graph the piecewise defined function.