Claire eats two pieces of buttered toast and a glass of pineapple juice for breakfast every day.

the price of a slice of buttered toast is b and the price of a glass of pineapple juice is j.

there are different ways to represent how to calculate the cost of breakfast for 7 days.
select all that apply.

a. 7(2j+b)

b.7j+14b

c. 7(j+2b)

d.14j+7b

B and C

Step-by-step explanation:

Since the price of one slice is B then 2 pieces has the price of 2B amd the total cost equals 2B+J

then to calculate the total cost for 7 days you have to multiply the cost for one day by 7 which is 7(J+2B) or if you expand that phrase you get 7J+14B

C

because you wanna know the cost of the bread and drink

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

answer: -0.5 would be the most likley outcome

step-by-step explanation: