Which Expression is equivalent to -0.3(1.5x-0.6)-2(-0.4+0.9x)

A. 0.45x+0.20
B. 0.45x-1.98
C. -2.25x-0.62
D. -2.25x+0.98

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints