Which expression is equivalent to
2/3(9x-6)+4(1/2 x -- 1/2)

1/2 and 3/4 are fractions

Given expression is equivalent to the expression .

Step-by-step explanation:

Given expression is  

To simplify the expression:

Taking LCM 6 to the above expression we get

(Applying multiplication rules)

 ( doing sums to the terms)

We can take common number 2 outside to the above expression

Therefore  

Therefore given expression is equivalent to the expression .

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.