A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9. What is the original number?
A: -30
B: -4
C: 4
D: 30

(No shown work is needed)

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone. which are equivalent equations?

What is the difference between the equations of a vertical and a horizontal line?