7. A fundraising dinner was held on two consecutive nights. On the first night,
100 adult tickets and 175 children's tickets
were sold for a total of $937.50. On the
second night, 200 adult tickets and 316
children's tickets were sold for a total
of $1790. What was the price for a
children's ticket?
so

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me