Using the following prices, calculate the unit price to determine how much it would cost for 7 granola bars and 9 bottles of water. $7.14 for 6 granola bars $8.72 for 8 bottles of water a. $18.14 b. $18.63 c. $21.41 d. $31.72 Please select the best answer from the choices provided A B C D

The chart below matches messenger rna codons with amino acids. a dna strand has the sequence of bases, aat. according to the chart, the corresponding messenger rna codes for which amino acid?

This graph represents four ecosystems. each ecosystem has a different number of species, adding to its biodiversity. different colors represent different species. which statements correctly summarize the data depicted by the graph? 1. ecosystem d has more biodiversity than ecosystem c. 2. ecosystem b has more biodiversity than all the other ecosystems. 3. ecosystem a has more biodiversity than ecosystem b but less biodiversity than ecosystem c. 4. ecosystem b has more biodiversity than ecosystems c and d but less biodiversity than ecosystem a. 5. ecosystem a has more biodiversity than ecosystem c but less biodiversity than ecosystem b.

How do you work out 21.3-8= show your working. plz