I need to know what X solves for

x= 30

Step-by-step explanation:

triangle is equal to 180 n we know c=90 so now we're just looking for the other 90 so 3x=90 n solve for x

sorry im bad at explaining

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof