Five students wrote equations on the chalkboard.
Kate: (6.7 x 109) – 19.3 x 102) = 5.77 x 10$
Paige: 12,000 - (1.2 x 10%) = 1.08 x 104
Carlos: (4.5 x 10^) - (3.7 x 102) = 0.8 x 102
Lisa: (5.8 x 10') – (6.2 x 10%) = 5.18 10%
Penn: (5 x 10°) - 140.000 = 4.86 x 106
Whose equations are true? Select all that apply.