You are rolling a die and you roll a '4' seven out of the 20 times you roll the die. What is the experimental probability that you roll a 4 when you roll the die? Express your answer as a simplified fraction.

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

In what organelle does photosynthesis take place?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest