Heather's father gives her a jar
of pennies. she decided to add
3 pennies to the jar every day.
after 10 days, she counted
462 pennies in all. how many pennies
were in the jar before heather began
adding pennies?

432

Step-by-step explanation:

do 3 times 10 to figure out how many pennies she added to the jar then subtract that from the current sum

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.

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer