Answer:144
Step-by-step explanation: I explained what to do in the comments.
Answer:
x < -3/2
Step-by-step explanation:
12x + 7 < -11
Subtract 7 to both sides
12x < -11 -7
= 12x < -18
Solve for x.
x < -18/12
= x < -3/2
Answer:
thank you
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let x be the number of apples and y be the number of oranges Kayla buys.
She needs to buy an assortment of at least 15 apples and oranges, then

Apples cost $0.65 each, then x apples cost $0.65x
Oranges cost $0.78 each, then y oranges cost $0.78y.
She spends less than $20.00, so

Not that the number of apples and oranges must satisfy inequalities

so the following system of inequalities models this situation:
