T = 4
divide each term by 2 and simplify
2(t+1)/2 = 10/2
t+1 = 10/2
t+1=5
t=5-1
t=4
8×1+5×(1/10)+9×(1/1000)
8+5×(.1)+9×(.001)
8+.5+.009
Answer is 8.509
Hope it helps and pls mark as brainliest
Four times a number would equal 4n
Given: The information provided in the table shown
To Determine: From the options provided, the correct option that best describe the information given in the table
Solution
Given that 28% of the children used toothpaste. From the table

Let us calculate the percentage of adult that used toothpaste

Hence, a smaller percentage of adults (about 11%) use the toothpaste.
The correct option is OPTION C