Sara found 58 seashells on the beach, she gave dan some of her seashells. she has 13 seashells left. how many seashells did she give to dan?

answer:

the normal distribution is symmetric about its mean.

so answer c) must be true.

answer:

the holiday party will cost $800 if 40 people attend.

step-by-step explanation:

first we need to find how much it costs per person.

160/8=20

we know it costs $20 per person so we can calculate how much it costs for 40 people.

40x20=800

answer:

2*1 = 2^1

2*2 = 2^2

the answers are

x = 1 and x = 2