The present age of Ramu's father is four times that of
Ramu; After five years the sum
of their ages would be 90
years. Then the present age of
Ramu is
years.

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

The verbal translation for the difference of m and 7 increased by 15

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?