Maria used a thermometer to record temperatures of −4.3° Celsius and 2.1° Celsius. Which temperature in degrees Celsius is less than both of the temperatures Maria recorded?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

What is the surface area of the sphere?

Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?