what does sam need to score on the fourth test to ensure that she will have an average of90% for all four tests?

98%

Step-by-step explanation:

83%+91%+88%+?=90×4

262+?=360

?=360-262

?=98%

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons