A man earns $ 1200 and spends $ 450 per month. Find the ratio of his saving to his income.

income =$1200

expenditure=$450

saving=$1200-$450

=$750

ratio of income to expenditure is 1200:450

=8:3

ratio of savings to income is 750:1200

=5:8

hope it helps

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∠STU = 40°

Step-by-step explanation:

Using the properties of the rhombus

• The diagonals bisect the angles

• Consecutive angles are supplementary

Sinc the diagonals bisect the angles then

∠UST = ∠USR = 70°, hence

∠RST = 70 ° + 70° = 140°

Hence ∠STU = 180° - 140° = 40° ( consecutive angles are supplementary )