Answer:
He needs to answer at least 20 questions correctly.
Step-by-step explanation:
8.33x10^9 is the answer I believe
By using Geogebra online graphing calculator, the solution to this system of inequalities are plotted in the image attached below.
<h3>What is an inequality?</h3>
An inequality is a mathematical relation that compares two (2) or more integers and variables in an equation based on any of the following:
- Less than or equal to (≤).
- Greater than or equal to (≥).
Given the following system of inequalities:
3y > 2x + 12 ⇒ 3y - 2x > 12
2x + y ≤ -5
By using Geogebra online graphing calculator, the solution to this system of inequalities are plotted in the image attached below.
Read more on inequalities here: brainly.com/question/24372553
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Six hundred eighty thousand and ten.
Answer: $43.70
Explanation: if target marked up the speaker by 15%, then you multiply the original price by 1.15 to get the answer:
$38 x 1.15 = $43.70