Solve each inequality. Graph each solution set. 4. 6≤1-5x
5. -6.9<8.1-1.5x
6. 3(x+1)>5x+7
7. 4(3-0.1x)≤15-0.6x
Write an equation, solve and show your work.
8. Mary is 6 years older than her sister Kelly. The sum of their ages is 48. How old is Kelly?
9. Laura wants the average amount of money she spends each day on her four-day vacation to be no more than $64. On the first 3 days, she spends $71,$62, and $59. What is the greatest amount of money she can spend on the fourth day?
10. The coach of the field hockey team can spend at most $475 on the new team uniforms. The coach will order the uniforms online and pay a mailing coat of $6.50. If each uniforms costs $29, how many uniforms can the coach order?