3. Given the two lines, determine if they are parallel or perpendicular.

line a: 4x - 2y = 10 4x

line b: 3x - y = - 18

Kerry asked a bank teller to cash a $390 check using a $20 and $50 bills. If the teller gave her a total of 15 bills, how many of each type of bill did she receive?

Four years ago, Katie was twice as old as Anne was then. In 6 years, Anne will be the same age that Katie is now. How old is each now?

I do not understand how to simplify 5y-8x-y+12x

Subtract 9 from z. 9-Z, Or Z-9

The following chart shows the times of runners in the 100 meter sprint. rahn / 11.33 secmiguel / 11.5 sectyrone / 11.09 secgeorge/11.28 secwho won the race? a. rahnb. miguelc. tyroned. george

A data set that consists of 33 numbers has a minimum value of 19 and a maximum value of 71. Determine the class boundaries using the 2 Superscript k Baseline greater than or equals n rule if the data are: a) discrete b) continuous

A scientist has a 120 mg sample of an unstable isotope. The amount of the substance remaining in the sample decreases at a rate of 16% each day. At the end of t days, there is less than 30 mg of the substance remaining.

A rectangular plot of land is to be fenced in using two kinds of fencing. Two opposite sides will use heavy-duty fencing selling for $3 a foot, while the remaining two sides will use standard fencing selling for $2 a foot.

How to recipacte fractions

Define a variable and write an inequality to represent in thus situations ... No one under 23 is allowed to captain an airplane