Express the following in standard form: i) 39700000 ii) 0.00000023 iii) 0.00057865

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.