The answer is D. This is because all of the variables must be on one side so it can be factored.
Answer:
15
Step-by-step explanation:
All sides of a rhombus are equal, so

Answer:
he needs to get a 91 to have a mean score of 90
Step-by-step explanation:
add up all the known scores to get 629
let 's' = lowest test score
(629 + s) ÷ 8 = 90 [we divide by 8 because there are 7 known and 1 unknown score)
cross-multiply to get:
629 + s = 720
s = 720-629
s = 91
D-chloroplast. Chloroplasts are found in plant cells and carry out the process of photosynthesis, they are the equivalent of the “power house of the cell”, the mitochondria