You plan to practice playing guitar for 15 minutes on three weekdays and 20 minutes each on saturday and sunday. evaluate the expression 15×3+20×2 to find the number of minutes you will practice during the entire week

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.

Could someone with number 1 and 2

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.