Unit 2 MTH63 Review

Solve for x:

2x-10=5x+23

Solve for x:

 $\frac{4x}{3x-2}=8$  

 Simplify the following:to write your answer, use ^ to raise something to an exponent.$-2x^2\left(4xy^2+6x-7y^3\right)-\left(y^3x^3-5x^3+4\right)+\left(-9-18y^2x^3+2x^2y^3\right)$  

 $\left(4x-2\right)\left(-7x+1\right)$  

Simplify the following:

  
Use the ^ symbol to raise a value to an exponent!

18. Simplify the following using BEDMAS

{43 ÷ [62 ÷ 2 – (18 • 2 – 15.75)]} ÷ (19 – 16 + 1)

What number is 74% of 325?

36 is 30% of what number?

Bob and Sam were in a hot dog eating contest. The ratio of hot dogs eaten between the two was 5:7. If together they ate 72 hot dogs, how many did Sam eat in total?

Simplify the following ratio to its lowest form.

0.225 : 6

 $\frac{3}{10}\ :\ 0.12$  

Simplify the following ratio to its lowest form: