A) 2x-7=13
2x=20
x=10
B) 3x+4=25
3x=21
x=7
15% x 50 = 7.5
You can search these up in a calculator or in google if you want. The answers should be online.
Answer:
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Step-by-step explanation:
<em><u>Given</u></em><em><u> </u></em><em><u> </u></em>

<em><u>Since</u></em><em><u>,</u></em>

<em><u>Hence</u></em><em><u>,</u></em>


U have to put a number between it
131,132,133,134,135,136,137,138,139