Solve for x.

X-10 = -30

Ox=-40

Ox=-20

x = 20

x = 40

At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?

The length of a text messaging conversation is normally distributed with a mean of 10 minutes and a standard deviation of 4 minutes. What is the probability that a conversation lasts longer than 20 minutes?

If 8 gallons of gas cost 28.16 how much will 5 gallons of gas cost at the same rating?

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Simplify the complex fraction 2/3 over 1/3

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Solve each inequality 2>6/6-1

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12c-4=14c-10 whats the solution