A sum of money is shared between Matt and John in the ratio 2:5. Matt received $60. How much money was shared altogether?

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

Can someone me with this problem . show your work .

What are the domain and range of the function f(x)=2^x+1