Each potato plant on Mars sprouts either exactly 2 or exactly 4 potatoes. If Mark knows that he has 21 plants and 58 potatoes, then how many plants sprouted 2 potatoes and how many sprouted 4?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c