5. Brandon solved the following system of equations by substitution. His partner Lisette checked his work and said she found an error. What step did Lisette find the error?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.