PLEASE HELP ME IT IS AN EMERGENCY When the original price and discounted prices are known, how can we find the percent markdown?

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?

Type the next three numbers in a sequence 80, 90, 85, 95, 90, 100, 95, 105