How are these 2 equations equivalent?

3 (a+b)

3a+3b

What is the y-intercept of y=-x²+6x+4

The total cost of all of the ingredients for her cakes is $62 She will sell each cake for $10

For every 5 coins carmen gets, she gives 2 to her brother Frankie. If carmen has 9 coins, howmany coins does Frankie have?

How to figure out math problem 2 3/8 x 1/3

Here is a list of numbers that my teacher drew out of a hat from 49 possible numbers over the last 11 days: {35, 2, 39, 24, 19, 21, 39, 14, 24, 43, 8}. For this set of data, determine the: a.) mean b.) median c.) mode

Which of the following is a behavioral adaption of a spider? a. poisonous venom b. web spinning c. eight legs d. body color

A family pays $45 each month for cable tv. The cost increases 7%. How many dollars is the increase? What is the new monthly cost?

The circumference of a large crater is about 219 m. what is the radius of the crater?

A rectangular pen is made with 100 m of fencing in three sides. The fourth is a stone wall. Find the greatest possible area of such an enclosure.

Simplify - 2 (v+5) + 5 (4v-2)