Which equations are true for the values of x, y, and z in the figure? Select all that apply.
x° + 105° = 180°
x° = z°
105° – y° = 90°
x° + y° + z° = 180°
180° – z° = y°
x° + y° = 105°

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?

Maria heard on the radio that the high temperature that day would be to determine the temperature in degrees celsius, she used the formula , where c is the temperature in degrees celsius and f is the temperature in degrees fahrenheit.