I had to do this and it’s fake, my whole class got it wrong even though we all put the right answer so ya
So hmm notice the picture below
one is 7x5x1.75 the volume of a rectangular prism is V = length * width * height
so 7*5*1.75 gives us 61.25 ft³
the second one, is larger by some width and length we dunno, but we know that it required that 61.25 plus an extra 17.5 to fill it up, so its volume is 61.25 + 17.5 or 78.75
the height is the same... so

so.. if you factor 45, to two factors, one will be the length, the other the width
1. 5/6
2. 7/1
3. 1/7
Just write the first number as the numerator and the second one as a denominator then divide by their common factors
No solution / no x
D=b^2-4*a*c -> D=-4^2-4*1*21 -> D=-28 -> D<0, no solution
Sinx=1/2
sin30=1/2
therefore x=30 degree