Answer:Richard is 20 and Teo is 8
Step-by-step explanation: I attached a picture of the process I followed to solve. Hope this helps!
Answer:
16
Step-by-step explanation:
Let the unknown number be x
2x - 7 = 9
2x = 9 + 7
2x = 16
2x÷2 = 16÷2
x = 8
8x2
=16
26
8 * 2 + 10 = 26
Answer:1/2