3.07 × 10^-4 written in standard form

here are the choices

a. 0.00307

b. 0.000307

c. 30,700

d. 300,700

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.