Which number is written in scientific notation? 1. 4.5x 10^-3
2. 14.5x10^2
3.0.78x10^-6
4. 5.7x4^8

Itook a better photo of the question so y’all can see it i hope it’s a fine photo

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 equation matches the graph shown ?