Two sisters each bought 1 litter box, 10 cat toys an x bags of cat food. Write and simplify

an algebraic expression that represents this purchase.

2a + 20b + 2xc = 2 (a+10b+xc)

Step-by-step explanation:

Let a = one litter box, b = one cat toy and c = a bag of cat food

The 1 litter box = a, 10 cat toys = 10b and x bags of cat food = xc

For one sister, purchase = a + 10b + xc

And for two sisters,

total purchase = 2 x (a + 10b + xc) = 2 (a+10b+xc)

= 2a + 20b + 2xc