If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?
answers:
y=5/18(11)
y=18/5(11)
y=(18)(5)/11
y=11/(18)(5)

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.