15/100 × 215 = 3225/100
= 32.25
i am a mathematics teacher. if anything to ask please pm me
4(-9*x)
Multiply the two numbers
-36x
Final answer: -36x
10)

11)

12)

13) (your answer is incorrect)

14) (your answer is incorrect)

15)

16)
-expression to represent this situation

Answer: In 1 group 57 students
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P.S. Hello from Russia :^)
Answer:
6.25
Step-by-step explanation:
You would multiply 2.5 by itself since you're dilating your side length.
2n+14=14+2n so this one as an infinite number of solutions. The second one 1-x=-x-6 so you add x on both sides which results in it having no solutions.