Each box on this grid represents one square inch. Roger cut out a quilt block pattern and placed it on the grid (Square A). From the pattern he made a larger sized quilt block (Square B). What is the ratio of the area of Quilt A to the area of Quilt B?
OA. 1:4
ОВ. .
1:2
OC. 4:1
OD. 1:1

a. she will receive a refund of $278.

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

b). 4320 have a nice day

there are infinitely many solutions.