Write the recurring decimal 0.1 as a fraction in its simplest form

Me find the measure to side a and the process to solve the problem you appreciate it : )

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Which statements regarding efg are true? check all that apply.