A hot air balloon rises 270 feet in the air and decreases 130 feet. Make sure to draw a number line and represents each situation and its solution.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.

Nine more than four times a number is the same as one less than twice the number. find the number?