Salim has 9 five-dollar bills and ten-dollar bills in his wallet. The total amount in his wallet is $60. This situation
can be represented with the system x + y = 9 and
5x + 10y = 60, where x represents the number of five-dollar
bills and y represents the number of ten-dollar bills.
How many five- and ten-dollar bills does Salim have?

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.

Given the functions, f(x) = 2x^2 - 1 and g(x) = 5x, find f(g(x)) and g(f(

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)