Hayley wants to buy 9 Coconutz bars. One Coconutz bar costs 42p.
A pack of 5 Coconutz bars costs £1.80
Work out the least that Hayley must spend.
You must show that your answer is the lowest total cost.
how do u work this out?

Natasha spent 1 1/2 hours on the beach. she fell asleep for 3/4 of the time she was on the beach and then woke up with a terrible sunburn.how many hours was natasha asleep on the beach?

Anyone know? will mark brainliest if you're correct!

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000