Fiona is seven years less than twice the age of Carlos. The combined age of Fiona and Carlos is 53 years.
Which of the following systems of equations represents the situation?
A. F= 2C – 7
C+F = 53
B. C= 2F - 7
C + F = 53
C. F = 53 – 7
C + F = 2C

How old is fiona and how old is Carlos

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18