To get a c in history, Nandan must average 72 on four tests. Scores on the first three tests were 65, 77, and 60. What is the lowest score Nandan can get on the last test and still receive a c?

Step-by-step explanation:

average means the sum of all events divided by the number of events.

so, (65 + 77 + 60 + x)/4 >= 72

we solve for x and = 72.

65+77+60+x = 288

x = 86

so, he must score at least a 86.

hello umm i don't understand your question can you explain it more pls

step-by-step explanation:

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees