Sumaya is using two different strings of Christmas lights to decorate her house. one string flashes every 10 seconds. the other one string flashes every 15 seconds. when Sumaya turns on the lights they flashes at the same time. work out how long it will be before they flash again at the same time. use the LCM to help you work out your answer​

The sum of two numbers is 58. the first number is 8 less than half the second number. let  c  represent the first number. let  drepresent the second number. which statements about solving for the two numbers are true? check all that apply. the equation    represents the sum of the two numbers. the equation    represents the sentence “the first number is 8 less than half the second number.”the equation    represents the relationship between the two numbers. the equation    represents the sum of the two numbers. the number  d  is 14.the number  c  is 44.the number  c  is 14.the number  d  is 44.

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"