Plz hurry it's !
eric has only pennies and dimes in his coin collection. he has 5 times as many pennies as dimes.
which is an expression for the number of coins in his collection using d for the number of dimes?
0.01d+5(0.10d)
0.01d
5d
6d

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?