Which ratio is not equivalent to 15:18?
A: 25/30
B: 90/105
C: 60/72
D: 35/42

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Yvaries inversely as x. y =12 when x=5. find y when x=4