Please help im desperate. :)​

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )