Richard was thinking of a number. Richard divides by 2, then adds 3 to get an answer of 7. What was the original number​

the original number was 8

Step-by-step explanation:

8 divided by 2 is 4

4+3=7

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

the answer for this question is a= 13,622.84

step-by-step explanation: