5questions for algebra:
1. solve for r.
s=2πrh

a. 2πsh=r
b. s2π=r
c. s2πh=r
d. s2=r

2. solve for c.
a(b − c)=d

a. c=ab − d

b
b. c=ab + d

a
c. c=d − ab

a
d. c=ab − d

a
3. solve for q.
s = 4p + 4q

q= s − 4p
q= s − 4p

4

q= 4p − s

4

q= s − 4p

p
4. for a trapezoid, the following formula relates the area a, the two bases a and b, and the height h.
a=(a+b)2h
solve for a.
a. a = 2a − b

h
b. a= 2a/h + b
c. a= 2a/h − b
d. a= ah/2 − b
5. the formula for the perimeter of a rectangle is p=2(l+w).
solve for l.
l= p/2 − w
l= p/2 + w
l= p − w

2
l= 2p − w