Mia and her children went into a bakery where they sell cupcakes for $2.75 each and brownies for $1.25 each. Mia has $30 to spend and must buy at least 14 cupcakes
and brownies altogether. If x represents the number of cupcakes purchased and y
represents the number of brownies purchased, write and solve a system of
inequalities graphically.

and

Step-by-step explanation:

Given

From the first statement:

From the second statement:

Required

Solve graphically

I've written the equations (above) and they are:

See attachment for graph.

The blue line represents

The shaded part of the graph represents

From the graph, the solution is:

the answer is b i just did that

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.