Can someone help me pleade

78.5

Explanation:

The median is the middle so you would add the two numbers that are in the middle which, when I’m order of smallest to biggest is 87 and 78 and then you would divide it by two giving you your answer of 78.5

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products