Evaluating & Writing Expressions Review

Twice the quantity of three more than d.

• $2+3d$

• $2(3+d)$
  

• $2+(3+d)$
  

• $2(3d)$
  

Two less than the quotient of 4 and b

• $\frac{4}{b}-2$

• $2-\frac{4}{b}$

• $4b-2$

• $2-4b$

The product of 3 and a number f increased by 5

• $3\div f+5$

• $\frac{3}{f}+5$

• $3+f\cdot5$

• $3f+5$

Triple the difference of a number n and 8.

• $3+n\div8$

• $3\left(n-8\right)$

• $3\left(n+8\right)$

• $3+n-8$

 $4z^2-5xy,\ for\ x=3,\ y=-4,\ z=-2$  

Answer explanation

 $\frac{de}{e-f}+f,\ for\ d=-5,\ e=-4,\ f=-3$  

Answer explanation

 $\left(a+b\right)^2\ for\ a=6,\ b=-8$  

Answer explanation

 $d^3+e,\ for\ d=-6,\ e=-3$  

Answer explanation

Fred has g grapefruits. John has three times the number of grapefruit as Fred. Write an expression for the number of grapefruit that John has.

Bagels cost $0.75 each. Write an expression for the cost of x bagels.