Each swing that susan builds requires $10 in hardware and $20 in wood. she uses the expression 10 + 20 to represent the total cost of building one swing.

which expression represents the total cost of building three swings?

a.
10 + (3 • 20)

b.
3 + (10 + 20)

c.
3 • (10 + 20)

d.
3 • 10 + 20

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p