The amount of freight transported by rail in the u. s was about 580 billion ton-miles in 1960 and has been increasing at a rate of 2.32% per year since then. a. write a function representing the amount of freight, in billions of ton-miles, transported annually. ( 1960 = year 0 )

b. graph the function

c. in what year would you predict that the number of ton-miles would have exceeded or would exceed 1 trillion (1,000 billion)?​

this is answer of 144 cubic meters

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.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

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step-by-step explanation: