Answer:
The expression Barak could use to find the amount he will spend to feed his pet lizards for one day = Number of pets × number of crickets per pet × cost of each crickets
Explanation:
Pet lizards = 4
Each lizard eats 5 crickets
4 pet lizards will eat = 4 × 5 crickets
= 20 crickets
A cricket = 12 cents
That is, $0.12
Cost of 20 crickets = 20 × $0.12
= $2
The expression Barak could use to find the amount he will spend to feed his pet lizards for one day
= Number of pets × number of crickets per pet × cost of each crickets
= (4) (5) (0.12)
= $2.4