Which set of expressions are not equivalent?

(4a + 2) + 3 and 5 + 4a

3a + 7 + 2a and 7 a + 5

0.5a + 3.5 + 4a and 3.5 + 4.5a

18a + 14 and 6a + 12 + 2 + 12a

If y=2 when x=3. What is the value of y when x=9?

Which of the following is a prime number 67,65,63 or 60

A plastic jug contains 2g gallons of milk more than a carton of milk. The plastic jug the carton contains 8g + 6 gallons of milk altogether. How much milk does the plastic jug contain?

What is the answer for the question 20. x+90

Two minor league baseball players got a total of 336 hits. Washington had 18 more hits than Sanchez. Find the number of hits for each player.

Li Na is going to plant 63 tomato plants and 81 rhubarb plants. Li Na would like to plant the plants in rows where each row has the same number of tomato plants and each row has the same number of rhubarb plants.

Charlie wants to pour 61.7 grams of salt into a container. So far, he has poured 19.3 grams. How much more salt should Charlie pour?

if P is the sum of three consecutive primes and also is the square of a prime, what Is the least possible value of P

Which statement is not true of frequency tables? a.) The number of tallies should equal the sum of frequencies. b.) If there are intervals, they should always be 5. c.) The size of the sample is the sum of the frequencies. d.

If you flip a coin 6 times, about how many times would you expect to flip heads or tails?