Which expressions can you use to find 70% of 58
A. 70(58)
B 1/70 (58)
C 0.70 (58)
D 7(58
E 70/100 (58)

C and E

Step-by-step explanation:

70% of 58

70/100 × 58

0.70 × 58

C 0.70 (58)

E 70/100 (58)

Step-by-step explanation:

We can change 70% to a decimal or a fraction

70% = .70 or 70/100 = 7/10

So we multiply .70*58  or 7/10*58  or 70/100 *58

C or E are correct choices

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.