1. A text message plan costs $6 per month plus $0.45 per text. Find the monthly cost for x text messages.
2. In some country the budget for defense exceeded the budget for education by $634.8 billion. If x represents the budget foreducation, in billions ofdollars, how can the budget for defense berepresented?

(Use integers or decimals for any numbers in theexpression.)

3. According tostatistics, a person will devote 31 years to sleeping and watching TV. The number of years sleeping will exceed the number of years watching TV by 21. Over thelifetime, how many years will the person spend on each of theseactivities? (Type wholenumbers.)

4.City Cabs charges a $2.25 pickup fee and $1.25 per mile traveled.Diego's fare for across-town cab ride is $19.75. How far did he travel in thecab?

he traveled how many miles?

(Round to the nearest wholenumber.)