Sam initially invested $4,500 into a savings account that offers an interest rate of 3% each year. he wants to determine the number of years, t, for which the account will have less than or equal to $7,020.

Every year, Sam will have 103% of the amount from the previous year.

After the first year:

After the second year:

After the t-th year:

Therefore we have the inequality:

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.

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.