Cathode rays when obstructed by metal cause emission of

[1.45 X 1.45 X 1.45 + 0.55 X 0.55 X 0.55 + 4.785] = ?

290 × 15 ÷ 5 + 34 + 50 = ? 

What will come in the place of question mark (?) in the given expression?

(√? - 17) X 40 + 145 = 1000 - 15 

(2/5)(32% of 4500 – 440) = ? × 8

Find the value of ‘x’ if (5 × 196 – 340 ÷ 17) ÷ 20 = √1600 – x.

((8)⁰- (0.1)^-1)/( (6/16)^-1 ×(3/2)³+ ((-2)/6)^-1) = ?/2

44.99% of 499.98 × (3.30/7.40)% of 1399.97 + 10.02 = ?

What will come in the place of question mark (?) in the given expression?

7 X 18 + ? = (5² - 6) X 9

(√1024 + √324)% of 780 = ?% of 260