How do i write a congruence statement, properly?

The ratio of boys and girls in a school is 7:5. if the total number of students in the school is 480, find the number of boys

Amanda is 15 years old. She has two sisters, Britney, who is 12 years old, and Caitlin, who is the youngest. Amanda's age is equal to 3 times the difference of Britney's age and Caitlin's age. How old is Caitlin? A. 3 years old B. 5 years old C.

Stock bottles should be moved on the shelves A. by placing new stock behind old stock so stock closest to expiration gets used first. B. from left to right in alphabetical order. C.

Ms. blankenship had $80 to purchase school supplies for her class she 30 to glue sticks and 32 boxes of crowns each glue stick cost $1.40 in each box of crowns cost $0.59 how much money did mrs. blankenship have left over after these purchases

Farmer Ed has 300 meters of fencing, and wants to enclose a rectangular plot that borders on a river. maximize the area.

Find an equation in standard form for the ellipse with the vertical major axis of length 10 and minor axis of length 8

Find the volume of the cylinder with radius 9 cm and height 15 cm.

2 x 1296 + 2 x 648 + 2 x 648

2 6/27 in simplest form

Dennis spent $5 less on lunch than he spent on dinner. Dennis spent at most $12 on dinner. Write and solve an inequality to find how much Dennis spent on lunch.