Apair of shoes costs $30.99 and the state sales tax is 5%. use the formula c = p + rp to find the total cost of the shoes, where c is the total cost, p is the price, and r is the sales tax rate

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas