Silvia’s test scores are 86, 78, and 92. what must she score on her fourth test in order to have an average of 85 for all four tests?

a.) 74

b.) 90

c.) 75

d.) 84

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.