Answer:
18. is 2×2×2×2×2×2×2=128
19. is 4×4×4×4×4=1,024
20. is 5^4 which is 625
21. the student did 3^2 which it asks for 2^3 so the answer is 2×2×2=8
22. it is 10^10 because the difference is 2 billion while the other number's difference is 92 billion
23. exponential form is when a certain number is raised to the power of a certain number or also known as exponents. Exponents signifies that the number that is being being raised to a certain power will be multiplied a number of times, based on the exponent
.....i hope it helps