If $3t-7=5t$  , then  $6t=$  

• 21

• -7

• -21

• -42

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

The variables x and y are directly proportional, and y = 2 when x = 3. What is the value of y when x = 9 ?

• 4

• 6

• 8

• 12

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

In the xy -plane above, point C has coordinates (6, 9). Which of the following is an equation of the line that contains points O and C ?

• $y=x-3$

• $y=x+3$

• $y=\frac{2}{3}x$

• $y=\frac{3}{2}x$

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

There are $3x-2$   trees planted in each row of a rectangular parcel of land. If there are a total of  $24x-16$  trees planted in the parcel, how many rows of trees are there in the parcel?

•  $21x-18$  

•  $21x-14$  

•  $8x$  

•  $8$  

Tags

CCSS.8.EE.C.7B

A group of 18 people ordered soup and sandwiches for lunch. Each person in the group had either one soup or one sandwich. The sandwiches cost $7.75 each and the soups cost $4.50 each. If the total cost of all 18 lunches was $113.50, how many sandwiches were ordered?

• 7

• 8

• 9

• 10

Tags

CCSS.8.EE.C.8C

Which of the following equations has both 1 and −3 as solutions?

• 
  

  $x^2-2x-3=0$
  

• $x^2+2x-3=0$

• $x^2-4x+3=0$

• $x^2+4x+3=0$

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

In the xy -plane, what is the y -intercept of the graph of the equation $y=2\left(x+3\right)\left(x-4\right)$  ?

• -24

• -12

• -2

• 12

Tags

CCSS.HSF-IF.C.7A

 $x^4-1=$  

•  $\left(x+1\right)\left(x-1\right)\left(x^2+1\right)$  

•  $\left(x+1\right)^2\left(x-1\right)^2$  

•  $\left(x+1\right)^3\left(x-1\right)^1$  

•  $\left(x-1\right)^4$  

Tags

CCSS.HSA.APR.C.4

 $\left(3x^2y^3\right)^3=$  

•  $3x^5y^6$  

•  $9x^6y^9$  

•  $27x^5y^6$  

•  $27x^6y^9$  

Tags

CCSS.HSA.APR.A.1

If $\sqrt{5-x}=4$ , then  $x=$   

• -21

• -11

• 1

• 11

Tags

CCSS.HSA.REI.A.2