Inequalities

Solve and Graph: 3x - 15 < 120

• x<45; graph has an open circle on 45 and an arrow to the left

• x<45; graph has an open circle on 45 and an arrow to the right

• x<42; graph has a closed circle on 42 and an arrow to the left

• x<42; graph has an open circle on 42 and an arrow to the right

9x-6+3x>42

 $7\left(x-1\right)\le35$  

 $-3x+4\ge-23$  

Faith has $192 in her savings account. Since she is not using the account, the bank charges a monthly fee of $5. The bank will close the account when the balance goes below $50. Write and solve an inequality to find how many months until the bank closes Faith’s account.

• 28 months

• 29 months

• 12 months

• 18 months

 $2x-50>75$  

15x + 20 > 50

-4x + 10 < 26

 $3x+70-7x\ge18$  

 $18\le-6x-30$