Landon and his children went into a bakery and will buy donuts and
brownies. Each donut costs $1 and each brownie costs $3. Landon has
a total of $15 to spend on donuts and brownies. Write an inequality
that would represent the possible values for the number of doiluts
purchased, d, and the number of brownies purchased, b.

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y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

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.

what do u need to know

step-by-step explanation: