HELP PLEASE the first term of an arithmetic sequence is -3 and the fiftieth term is 53. what is the common difference of the sequence?

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

If the segment op is dilated by a scale factor r=2, what is the length of segment op? a)10cm b)16cm c)6cm d)4cm