Question

can u answer this questions please

1. If 30% of x is 450, then find the value of x.
2. Find the volume of a cuboid 18 m long 14 m broad and 7 m high.
3. Write the usual form of 2.8 x 10−10

Answer 1

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Answer 2

Answer:

1. 30% *x= 450

x = 450*100/30

x= 1500

2. volume =l*b*h=18*14*7 =1764

3. if (2.8x10)-10ans is 18

if 28x(10-10) ans is 0