Differentiation by First Principles questions

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes