He cost of a 16-ounce soda from a vending machine increases from $2.25 to $2.70. Find the percent increase.

20% increase

Step-by-step explanation:

Initial price: $2.25

New price: $2.70

Percentage=(new price - initial price)×100/(initial price)

p=(2.70-2.25)×100/2.25=45/2.25=20%

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b