Determine the percent change from 30$ to 75$

Given abcd ac=38 and ae=3x+4 find the value of x

What does the sign of the slope tell you about a line?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )