Marlene brought a can of polyurethane varnish that was stored at 40°F into her shop, where the temperature was 74°F. After 2 hours, the temperature of the varnish was 58°F. If the varnish must be
68°F for best results, then how much longer must Marlene wait until she uses the varnish?

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

explanation:

remove parenthesis:

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apply rule

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multiply fractions:

=

=

divide:

=

mordancy.

p

step-by-step explanation:

b is the right answer