Astationery store sold 320 of two different types of pens for $190.55. one type of pen costs 25 cents and the other costs 80 cents. how many 80 cent pens were sold? what is the value of the 25 cent pens sold?

all work is shown and pictured

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value