If i have $5.00 and buy a note book for $4.50 and the sales tax is 7% do i have enough money?

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3