Easy question express 3 x 10^ -7 in usual form.

Which of the following tables represents exponential functions?

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.