The angle of elevation of the top of the tower from a point was observed to be 45 degree. On walking 30m away from that point it was found to be 30 degree. Find the height of the tower

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?