Solve using substitution. (Explanation too please)

y = 7x + 2
y = 10x − 1

The table represents a linear function. what is the slope of the function? –6 –4 4 6

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

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