Which triangles in the diagram are congruent? 70°
triangle 1
triangle 2
70°
70°
triangle 3
triangle 4

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.