How many times larger than 2x10^2 is 2x10^8

A

Step-by-step explanation:

if you multiply the exponents to the number you'll get 2x20 and 2x80 and 80 is 4 times more than 20

step-by-step explanation:

the first 5 right here the next 5 i will upload as separate question

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.