Answer: 1 and 21/100
Step-by-step explanation: Using the place value chart, we can see that 1.21 means 1 unit, 2 tenths, and 1 hundredth.
Think of 2 tenths and 1 hundredth as 21 hundredths.
So we have 1 and 21/100 which can
be written as the mixed number 
.
I have attached the place value chart below.
Answer:
a(a + 3b)
Step-by-step explanation:
a² + 2ab + ab
a² + 3ab
a(a + 3b)
Answer:
the formula for the volume of a square pyramid is V=a^2*h/3
so if we just put in the data
12^2*10/3
144*10/3
480
so the answer is B
Hope This Helps!!!
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y = 30x + 20 is the equation
