Answer:
6
Step-by-step explanation:
b+4=10
-4 .-4
b=6
<h2>
Answer:</h2>
<u>24.</u>
<h2>
Step-by-step explanation:</h2>
<h3>1. Write the expression.</h3>

<h3>2. Substitute the variables by the respective given value using <u>parenthesis</u>.</h3>

<h3>3. Simplify the expression by applying the hierarchy or mathematical operations.</h3>
<em>a) Solve parenthesis.</em>

<em>b) Solve the exponent.</em>

<em>c) Divide.</em>

<em>d) Subtract.</em>

Answer:
Step-by-step explanation:
4h/5
Answer:
420 seconds
Step-by-step explanation:
60 seconds are in 1 minute
60 x 7 = 420
therefore there are 420 seconds in 7 minutes