Solve the systems of equations using substitution.

What additional information could be used to prove abc =mqr using sas? check all that apply.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.